| 单词 | petiole |
| 例句 | Leaves are attached to petioles, which are small branches that radiate out from the stem. Fundamentals of Biology 2015-01-01T00:00:00Z The stalk that extends from the stem to the base of the leaf is the petiole. Biology for AP Courses 2022-06-09T00:00:00Z Leaves include blades attached to stems by petioles, and they have an outer dermal covering and inner ground and vascular tissues. Miller & Levine Biology 2018-01-01T00:00:00Z In the 1800s botanists proposed that the sheath part of a grass leaf represented the evolutionary equivalent of the petiole, the stalk that connects a typical plant’s leaf to its stem. This Tiny Tube Is Why Grass Is Everywhere 2022-04-11T04:00:00Z Botanists have discovered that money is not only the root of all evil, but also its hypocotyl, petiole and axillary bud. Style Invitational Week 1476: Matchless humor — show us some Googlenopes 2022-02-17T05:00:00Z The petioles join the branch at junctions called nodes. Fundamentals of Biology 2015-01-01T00:00:00Z Some leaves are attached to the plant stem by a petiole. Biology for AP Courses 2022-06-09T00:00:00Z Also, leaves in most flowering plants attach to the stem through a base called a petiole. This lovely lily’s cousin is an ear of corn. Now, scientists know how they are related 2018-11-05T05:00:00Z The leaves spring from the top of the root-stock, and are smooth, distinctly pedate, dark-green above, and lighter below, with 7 to 9 segments and long petioles. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Tall woody reeds, the flat leaves with a short petiole jointed upon the sheath. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Above the petioles, small leaves bud out from the node. Fundamentals of Biology 2015-01-01T00:00:00Z Small green appendages usually found at the base of the petiole are known as stipules. Biology for AP Courses 2022-06-09T00:00:00Z Auriculate leaf, one having small appended leaves or lobes on each side of its petiole or base. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z Next to the blooming corpse plant, in another pot, sits a single, giant leaf with a polka-dotted petiole. Visiting the corpse plant 2012-03-21T19:15:00.247Z Leaves orbicular, abruptly narrowed into the spreading hairy petioles; seeds spindle-shaped, the coat loose and chaff-like; flowers white, the parts sometimes in sixes.—Peat-bogs, The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Right photo shows a fan-shaped ginkgo leaf, which has veins radiating out from the petiole. Fundamentals of Biology 2015-01-01T00:00:00Z The petiole is the stalk connecting the leaf to the stem. Biology for AP Courses 2022-06-09T00:00:00Z Twice paired, as when a petiole forks twice. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z Leaves.—All with a dilated, clasping, eared base or winged petiole; above deeply pinnatifid into five to nine oblong or lanceolate, downward-pointing lobes. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Leaves alternate, mostly compound, the petioles expanded or sheathing at base, rarely with true stipules. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The petiole is the stem of the leaf. Fundamentals of Biology 2015-01-01T00:00:00Z Leaves that do not have a petiole and are directly attached to the plant stem are called sessile leaves. Biology for AP Courses 2022-06-09T00:00:00Z Having a forked petiole, and a pair of leaflets at the end of each division; biconjugate; twice paired; Ð said of a decompound leaf. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z Leaves.—With petioles somewhat widened at base and ciliate; the upper all opposite. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Smooth; leaves lanceolate, erect, blunt, tapering into a long-margined petiole, almost entire; petals beardless.—Damp soil; common, especially eastward. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The midrib is a vessel that extends from the petiole to the leaf tip. Fundamentals of Biology 2015-01-01T00:00:00Z A leaf petiole attaches to the main petiole or the midrib, not the stem, whereas a leaflet petiole attaches directly to the stem at a bud node. Biology for AP Courses 2022-06-09T00:00:00Z The angle or point of divergence between the upper side of a branch, leaf, or petiole, and the stem or branch from which it springs. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z Radical and lower leaves.—Spatulate to nearly obovate; tapering into a margined petiole. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Nearly smooth throughout, slender; leaflets ovate or roundish, very obtuse, thin, the lateral ones about the length of the slender petiole; otherwise resembling the preceding.—Copses, The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Similarly, the dead fronds fall off, leaving a ragged petiole, which is afterwards separated from the stem by an absciss-layer a short distance above the base. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z A leaf petiole attaches directly to the stem at a bud node, whereas a leaflet petiole is attached to the main petiole or the midrib, not the stem. Biology for AP Courses 2022-06-09T00:00:00Z They not only know that leaves are good to eat, but they know which is the "petiole" and which is the "base." The Adventures of a Grain of Dust 2011-11-22T03:00:12.257Z Leaves.—Narrowly oblong or lanceolate; a foot long or less; acute; undulate; narrowed into a short, very thick petiole. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Leaves radical; leaflets 3, obovate-wedge-form, coarsely serrate, stipules cohering with the base of the petioles, which with the scapes are usually hairy. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The distal ends of these girdles give off several branches, which traverse the petiole and rachis as numerous collateral bundles. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z Culm woody, at any rate at the base, leaf-blade jointed to the sheath, often with a short, slender petiole. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z Chile beech.—Leaves ovate, oblong, oblique, somewhat rhomboid, blunt, doubly serrated, entire at the base, attenuated into the petiole, and somewhat downy. The Nut Culturist A Treatise on Propogation, Planting, and Cultivation of Nut Bearing Trees and Shrubs Adapted to the Climate of the United States 2011-11-12T03:00:31.793Z Leaves.—Few; all radical; oval; one to two inches long, on broad petioles six to twelve lines long. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Usually much branched above and minutely hoary-pubescent, 1–2° high; leaves linear-lanceolate, tapering to a short but distinct petiole, acutish; flowers numerous, pale; capsules hoary, on pedicels as long as the leaves. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The leaves he describes as having very short petioles, hearted at the base, and of a coriaceous consistence, and covered with large semi-globular glands. The International Monthly, Vol. II, No. I December 1, 1850 2011-10-29T02:00:14.677Z And the leaflets simultaneously fall away from their common petiole. Trees Worth Knowing 2011-10-13T02:00:48.357Z The petioles of the leaves also furnish them with a strong fiber, used as thread-cord, and for various other purposes. The Nut Culturist A Treatise on Propogation, Planting, and Cultivation of Nut Bearing Trees and Shrubs Adapted to the Climate of the United States 2011-11-12T03:00:31.793Z Leaves.—Broadly oblanceolate; two to four inches long; narrowed into a short petiole. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Branches brownish; the branchlets, etc., rough-pubescent; leaves oblong or ovate, on short petioles, pointed, rough with a harsh pubescence above, and downy beneath; calyx-teeth minute; fruit white. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The leaves are on slender flat petioles, arranged alternately on the twigs, and broadly oval, short pointed and shallowly toothed. Forest Trees of Illinois How to Know Them 2011-10-08T02:00:23.997Z The swamp cottonwood of the South has leaves of variable but distinctly poplar form, always large, broadly ovate, with slim round petioles. Trees Worth Knowing 2011-10-13T02:00:48.357Z The outer extremities of the leaves wilt, die, and turn suddenly brown and then black, and often remain adhering by their petioles for months—sad testimonials of the destruction caused by the blight. American Pomology Apples 2011-10-03T02:00:29.477Z Leaves.—Opposite; lanceolate; narrowing into a petiole; several inches long. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Buds flat, sheathed by the successive pairs of flat and broad stipules joined at their edges, the folded leaves bent down on the petiole so that the apex points to the base of the bud. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z They are dark green and shiny above, but pale and hairy beneath, borne on stout, hairy petioles. Forest Trees of Illinois How to Know Them 2011-10-08T02:00:23.997Z At the base of the petiole stands a smaller flat green bag. Trees Worth Knowing 2011-10-13T02:00:48.357Z The leaves have a dilated petiole and a slightly stalked 2-lobed lamina, with three short stiff bristles on each lobe. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z Leaves.—Alternate; on slender petioles two to six lines long; ovate to ovate-oblong; one to three inches long; entire or rarely slightly glandular-serrulate; thin. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Annual or nearly so; lower leaves on hairy petioles, petals shorter than the calyx, 2-parted, stamens 3–10.—Everywhere in damp grounds. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The leaves resemble those of the sugar maple but somewhat broader and the petioles exude a milky juice when cut. Forest Trees of Illinois How to Know Them 2011-10-08T02:00:23.997Z The opposite arrangement of the leaves and that short-winged petiole identify the little tree, whether it grows by the swamp borders, along the streams, or in parks and gardens. Trees Worth Knowing 2011-10-13T02:00:48.357Z The colo-colo is another of these peculiar Philippine species with more or less winged petioles affiliated to the lemon, etc. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z Leaves.—All radical; oblong-lanceolate; acute; one to three feet or more long; three to ten inches broad; narrowed to a short petiole or sessile. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Base of the petioles hollow, enclosing the leaf buds of the next year. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The leaves are simple, alternate, broadly triangular, pointed and coarse toothed on the edges, 3 to 5 inches across, thick and firm supported by flattened slender petioles, 2 to 3 inches long. Forest Trees of Illinois How to Know Them 2011-10-08T02:00:23.997Z The twigs are coated with pale hairs, the young leaves, and ultimately the leaf-linings and petioles are hairy, and the fruits are downy, marked with dark dots. Trees Worth Knowing 2011-10-13T02:00:48.357Z When the scars left after the petioles have fallen are well healed the budwood is in condition for budding. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z This has ovoid or obovoid, very obtuse, entire leaves, with broad petiole, equaling the blade, two inches long. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Cotyledons thick and fleshy.—Herbs, with palmately 1–15-foliolate leaves, stipules adnate to base of the petiole, and showy flowers in terminal racemes or spikes. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The alternate simple leaves are 3 to 6 inches long, and one-half inch wide on very short petioles; the tips are much tapered and the margins are finely toothed. Forest Trees of Illinois How to Know Them 2011-10-08T02:00:23.997Z A peculiarity of the foliage is the apparent division of the petiole into three main ribs, instead of a single midrib. Trees Worth Knowing 2011-10-13T02:00:48.357Z Then when the petioles have dropped and a well-healed scar has formed, the budwood may be cut and the buds inserted and tied as in ordinary shield budding. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z Leaves.—Ovate or oblong; three- to five-nerved at base; narrowed into a short petiole. The Wild Flowers of California: Their Names, Haunts, and Habits 2012-02-17T03:00:37.163Z Seeds smooth and shining.—Low and slender perennials, with round heart-shaped alternate leaves on the rootstock or runners, on slender petioles; those on the flowering stems opposite, if any. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z They are broadest toward the apex tapering to the short petiole. Forest Trees of Illinois How to Know Them 2011-10-08T02:00:23.997Z The yellow-green foliage, a foot long, of seven to nine short, stalked, lustrous leaflets, is lightened by a pale pubescence on petioles and leaf-linings. Trees Worth Knowing 2011-10-13T02:00:48.357Z The petioles, ribs of leaves, and stalks, are eaten fresh when stripped of the epidermis; and their taste is similar to that of the sorrel. The Highlands of Ethiopia 2011-02-25T03:01:07.193Z He was standing almost immediately under an incandescent lamp that projected on its curved petiole from the wall. The Tower of Oblivion 2010-12-20T17:11:53.787Z Seed suspended.—Perennials, with alternate 2–3-ternately compound leaves, the divisions and the leaflets stalked; petioles dilated at base. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The leaves are usually wider than long, yellow-green and downy beneath, and the base of the petioles enlarged. Forest Trees of Illinois How to Know Them 2011-10-08T02:00:23.997Z Most oak leaves have leathery texture, strong veins, and short petioles. Trees Worth Knowing 2011-10-13T02:00:48.357Z In the latter, and in other woody plants which climb in this way, the petioles thicken and harden after they have grasped their support, thus securing a very firm hold. The Elements of Botany For Beginners and For Schools They are on long petioles, and have a pleasing sound when ruffled by the wind. Trees and Shrubs for English Gardens Drupe with 4–5 bony nutlets, light red.—A much-branched shrub, with ash-gray bark, alternate and oblong deciduous leaves on slender petioles, entire or slightly toothed, smooth. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The leaves are pale green, glandular, and set on edge by a twist of the petiole. My First Summer in the Sierra The alternate leaves are obliquely heart-shaped, saw-toothed, with prominent veins that branch at the base, only on the side next to the petiole. Trees Worth Knowing 2011-10-13T02:00:48.357Z Cushion, the enlargement at the insertion or base of a petiole. The Elements of Botany For Beginners and For Schools Leaflets thin, the petioles and pedicels nearly glabrous or with appressed hairs; fruit conic, the achenes on its surface Wood Strawberry, Fragaria americana. 66a. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Stems procumbent from a deep biennial root; leaves round-heart-shaped, on very long petioles, crenate, obscurely-lobed; petals twice the length of the calyx, whitish; carpels pubescent, even.—Waysides and cultivated grounds; common. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z We should boil lupine leaves, clover, starchy petioles, and saxifrage rootstocks like the Indians. My First Summer in the Sierra Hold this bag up to the light and you see, as a shadow within, a curved petiole and leaf. Trees Worth Knowing 2011-10-13T02:00:48.357Z The base of the petiole is apt to be broadened and flattened, sometimes into thin margins, sometimes into a sheath which embraces the stem at the point of attachment. The Elements of Botany For Beginners and For Schools Leaves oblong, ovate, or triangular, not narrowed to the petiole, and frequently sharply toothed or incised near the base — 7. 4c. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Embryo in the axis of thin albumen.—Large trees, with the bark deciduous in broad thin brittle plates; dilated base of the petiole enclosing the bud of the next season. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z "Is the life out here getting a little quiet for you, petiole?" the tree asked solicitously. The Venus Trap Later the leaves broaden and reach six to eight inches in length, tapering narrowly to the short petioles. Trees Worth Knowing 2011-10-13T02:00:48.357Z Leaf of Red Clover: st, stipules, adhering to the base of p, the petiole; b, blade of three leaflets. The Elements of Botany For Beginners and For Schools Stipules small, inconspicuous, entire or toothed, and much shorter than the petiole — 19. 18a. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Hybrids with n. 6 have equally broad and large but duller green leaves, softly tomentose beneath and with shorter petioles, the aments equally thick but usually recurved, and the capsules on shorter pedicels. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The petioles supporting the leaves are about 3 meters long and 20 cm. thick, and are provided with long, stout, curved spines. Philippine Mats Philippine Craftsman Reprint Series No. 1 The characteristic hemlock foliage, lustrous green above and pale below, is two-ranked by the twisting of the slender petioles. Trees Worth Knowing 2011-10-13T02:00:48.357Z Stipules are such appendages, either wholly or partly separated from the petiole. The Elements of Botany For Beginners and For Schools Leaves sessile or with very short petiole Spearmint, Mentha spicata. 36b. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Embryo coiled in a flat spiral.—Twining rough perennials, with stems almost prickly downward, and mostly opposite heart-shaped and palmately 3–7-lobed leaves, with persistent ovate stipules between the petioles. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z In obtaining the fiber, the outer skin of the petiole is pulled off for stripping, and the remaining portion, which is called “upag,” is dried and woven into very coarse mats by children. Philippine Mats Philippine Craftsman Reprint Series No. 1 The petiole is often very short and sometimes wanting. Trees of the Northern United States Their Study, Description and Determination The ordinary leaf, complete in its parts, consists of blade, foot-stalk, or petiole, and a pair of stipules. The Elements of Botany For Beginners and For Schools Leaves narrowed at base into a petiole Speedwell, Veronica officinalis. 45b. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Bark much less separable than the next; leaves on slender petioles, tremulous as those of the aspen. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The leaves are never borne on a petiole, but are attached directly, in winding corkscrew fashion, in ranks of three, to the stem. Philippine Mats Philippine Craftsman Reprint Series No. 1 Parts of Leaves.—A complete leaf consists of three parts: the blade, the thin expanded portion; the petiole, the leafstalk; and the stipules, a pair of small blades at the base of the petiole. Trees of the Northern United States Their Study, Description and Determination The Filament is a kind of stalk to the anther, commonly slender or thread-like: it is to the anther nearly what the petiole is to the blade of a leaf. The Elements of Botany For Beginners and For Schools Twigs with a prominent hairy ridge extending downward from the middle of the line connecting the petiole bases 13a, in CAPRIFOLIACEAE, p. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Leaves opposite, on short petioles, not oblique, with stipular glands; stems dichotomously branched, erect; cymes terminal; involucres with 5 glands; seeds tuberculate. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z In the Cagayan valley mats of dried banana petioles are employed. Philippine Mats Philippine Craftsman Reprint Series No. 1 Leaves broadly heart-shaped, with a serrate margin and a petiole about as long as the blade, sometimes longer; base of leaf not oblique 4. Idesia. g. Trees of the Northern United States Their Study, Description and Determination The early botanists thought this such a peculiarity that they always called a Fern-leaf a Frond, and its petiole a Stipe. The Elements of Botany For Beginners and For Schools Leaves pinnately veined, or sometimes with smaller lateral veins arising from the end of the petiole — 100. 99a. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Leaves flat, lanceolate, the lowest spatulate, tapering into a petiole. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z At Argao, Cebu, banana petiole mats are woven as a by-product of the sabá cloth industry. Philippine Mats Philippine Craftsman Reprint Series No. 1 Leaves sessile; if narrowed, not so abruptly as to form a petiole. Trees of the Northern United States Their Study, Description and Determination Stalk, the stem, petiole, peduncle, &c., as the case may be. The Elements of Botany For Beginners and For Schools Base of the petiole covering the axillary buds; twigs marked with rings THYMELAEACEAE, p. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Leaves broader and more or less heart-shaped; petiole commonly hairy. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The petiole in different species varies from short to long and from stout to slender. Manual of American Grape-Growing Leaves usually but little flattened, but jointed to a short, brown petiole which is attached to a somewhat grooved twig; cones pendent, of lapping scales 94. Picea. Trees of the Northern United States Their Study, Description and Determination The leaflets of the former answer to the lobes or divisions of the latter; and the continuation of the petiole, along which the leaflets are arranged, answers to the midrib of the simple leaf. The Elements of Botany For Beginners and For Schools Base of petiole not covering the bud, and twigs not marked with rings — 115. 115a. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Embryo in the axis of albumen.—Low perennial herbs, with a tuberous rootstock or corm, sending up a simple scape sheathed with the petioles of the simple or compound veiny leaves. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Vine very vigorous, climbing; shoots and petioles densely wooly, whitish or rusty; diaphragm thick; tendrils intermittent. Manual of American Grape-Growing Leaves decidedly flattened, not jointed, but narrowed to a petiole which is usually green or greenish in color. Trees of the Northern United States Their Study, Description and Determination The joint at the place where the leaflet is united with the petiole distinguishes this last case from a simple leaf. The Elements of Botany For Beginners and For Schools Leaves with purple petioles, which are at least one-fourth as long as the blade 1a, in AQUIFOLIACEAE, p. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State June.—Corms clustered; petiole 1–2° long, much longer than the peduncle. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Leaves large, longer than wide, deeply five-lobed; dark green above, lighter and very hairy below; coarsely toothed; with short, thick petiole. Manual of American Grape-Growing Leaves twice as long as the petioles, and smooth except a woolly tuft in the axils of the veins beneath. Trees of the Northern United States Their Study, Description and Determination Palmate, when leaflets or the divisions of a leaf all spread from the apex of the petiole, like the hand with the outspread fingers, 57, 58. The Elements of Botany For Beginners and For Schools Leaves less than twice as long as broad, on petioles 3 cm. long or more — 2. 1b. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State June–Aug.—Rootstocks thickened and very strongly toothed in 2 rows by the persistent bases of the stout petioles. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The stipules or little appendages found on the petioles, resembling small leaves in appearance and texture, are generally found in pairs. The Story of the Cotton Plant Leaves of 5 to 7 oblong-lanceolate, finely serrate, generally smooth leaflets, of a shining green color, with purple veins and petioles. Trees of the Northern United States Their Study, Description and Determination Sometimes an expanded petiole takes the place of the blade; as in numerous New Holland Acacias, some of which are now common in greenhouses. The Elements of Botany For Beginners and For Schools Leaves more than twice as long as broad, on petioles 2.5 cm. long or less. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Seeds very numerous, minute and angular.—Low herbs, with small stipules united to the petioles. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z They are three to six inches in length, with an acuminate apex, somewhat attenuate at the base, with very short petioles which are united with the short interpetiolar stipules at the base. All About Coffee Leaves thickish, cordate, downy beneath, with 5 rather crenately toothed lobes, on long, often reddish petioles. Trees of the Northern United States Their Study, Description and Determination A leaf complete in its parts consists of blade, leaf-stalk or petiole, and a pair of stipules. The Elements of Botany For Beginners and For Schools Stipules large and leaf-like, deeply pinnatifid and nearly or quite as long as the petioles — 18. 17b. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State E. aromáticum, L. Smooth or slightly downy; stems nearly simple; leaves on short petioles, ovate, rather obtusely toothed, not pointed, thickish.—Copses, The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The leaves are in pairs and decussate with one another; while the lower ones have long petioles which bring them almost to the level of the upper pairs, the whole thus forming a beautiful dome. The Beauties of Nature and the Wonders of the World We Live In Small tree with alternate, odd-pinnate leaves, the base of the petiole hollow, and inclosing the leaf-buds of the next year. Trees of the Northern United States Their Study, Description and Determination The leaflets close in pairs, the four outspread partial petioles come closer together, and the common petiole is depressed. The Elements of Botany For Beginners and For Schools A leaf with two or more separate leaflets on a single petiole. The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State Not glaucous, slender, 1–3° high; leaves lanceolate, mostly somewhat serrate, the lowest spatulate-lanceolate on winged petioles; heads smaller than in the preceding, numerous, panicled; rays violet.—Rare; The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Earlier in the season, characteristic nests of partially eaten leaves, petioles and excrement are formed by several caterpillars tying the mass together with silk. The Pecan and its Culture Leaves smooth, thick, shining above, wedge-obovate, finely serrate above the middle, with a short petiole. Trees of the Northern United States Their Study, Description and Determination Partial involucre, same as an involucel; partial petiole, a division of a main leaf-stalk or the stalk of a leaflet; partial peduncle, a branch of a peduncle; partial umbel, an umbellet, 76. The Elements of Botany For Beginners and For Schools The trees stirred not; the branches seemed extended in the stillness of repose; even the leaves of the tremuloides, hanging on their compressed petioles, were scarcely seen to quiver. The Wild Huntress Love in the Wilderness Trees or shrubs, with stipules free from the petiole. a. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The caterpillars are about five-eighths of an inch in length, a dirty brownish-green in color, and live in silk-lined cases or tubes attached to the petioles of the leaves. The Pecan and its Culture Leaves small, ovate, with a broad truncate or heart-shaped base, pinnatifid into 5 to 7 crowded, irregularly toothed lobes; white and soft-downy when young, smoothish when grown; petioles slender. Trees of the Northern United States Their Study, Description and Determination Peltate, shield-shaped; said of a leaf, whatever its shape, when the petiole is attached to the lower side, somewhere within the margin, 53. The Elements of Botany For Beginners and For Schools The stems of the broccolis are usually taller than those of cauliflowers, the leaves more numerous, larger, stiffer, but more undulated, more rounded at the apex, and more frequently having a distinct stem or petiole. The Cauliflower Hairy, branched, winged above by the decurrent leaves; the lower leaves ovate-lanceolate, tapering into a petiole, the upper narrower; corolla yellowish-white, rarely purplish.—Moist places; escaped from gardens. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Botanical Description.—A tree 15–18° high with leaves alternate, lanceolate, glabrous, and petioles very short. The Medicinal Plants of the Philippines Leaves small, wedge-obovate, unequally toothed and cut above the middle; on short petioles; the teeth, stipules and petioles glandular. Trees of the Northern United States Their Study, Description and Determination Base has a heart-shaped notch; petiole long and slender, usually red. Ontario Teachers' Manuals: Nature Study On some trees, the petioles of last year's leaves were still attached to the dead twigs late the following summer, showing that the freeze occurred before the abscission layers had formed. Northern Nut Growers Association Incorporated 39th Annual Report at Norris, Tenn. September 13-15 1948 Filaments filiform; anthers separate, oblong.—Perennials, with mostly narrow entire or pinnatifid leaves tapering into margined petioles, and filiform naked pedicels solitary in the axils, refracted or recurved in fruit. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Botanical Description.—A vine with leaves alternate, entire, glabrous, broadly oval, pointed, with 5 nerves which unite at the base, long petioles. The Medicinal Plants of the Philippines Leaves palmately veined and strongly 3-lobed, broadly wedge-shaped or truncate at base, the spreading lobes mostly toothed on the sides and entire in the notches; petiole with 2 glands at the apex. Trees of the Northern United States Their Study, Description and Determination In the finer species they are lanceolate, with a shining surface of bright green, traversed by crimson veins and petioles of the same colour. The Western World Picturesque Sketches of Nature and Natural History in North and South America Rather recently a good deal of interest has been aroused in the so-called walnut curculio by reason of its attacking the shoots and leaf petioles of the Japanese walnut. Northern Nut Growers Association, Report of the Proceedings at the Fourth Annual Meeting Washington D.C. November 18 and 19, 1913 Leaves alternate and simple, with stipules adnate to the petiole or wanting. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z In India they use, for diarrhœa and vomiting, the viscid juice obtained from the petioles and the peduncles of the flowers. The Medicinal Plants of the Philippines Leaves, pale green, broadly ovate, somewhat heart-shaped at base, coarsely and sharply dentated, strongly veined and often with hairy tufts in the axils; petioles rather long and slender. Trees of the Northern United States Their Study, Description and Determination But in bamboos and some species of Ischæmum there occurs a short petiole or stalk between the leaf-blade and the sheath. A Handbook of Some South Indian Grasses I have met with instances of this kind in the common white clover, Trifolium repens, where on each side of the base of the petiole the stipules had the form just indicated. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Leaves spatulate-oblong, tapering into the long rather erect naked petioles; seeds oblong, with a rough close coat; flowers white. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z The flowers white or pink, solitary; peduncle long and, like the petioles, covered with soft, short spines. The Medicinal Plants of the Philippines Leaves broad, ovate, long-pointed, 2 to 3 in. long, closely and sharply serrated; petioles long and with narrow, curled margins; entire plant smooth. Trees of the Northern United States Their Study, Description and Determination They grew vertically on short petioles, like large green fans; and overlying one another, formed a perfect screen, through which the keenest eye could not perceive the approach of an intruder. The War Trail The Hunt of the Wild Horse In one instance seen by the writer every portion of the leaf of a rose was deficient, except the stipules and a small portion of the petiole. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Annual or biennial, 1–3° high, bearing numerous small heads; leaves oval or oblong, the lower with petioles auricled at base, the upper mostly subcordate-clasping.—S. E. Kan., and southward. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Botanical Description.—A shrub 15–20° high with compound trifoliate leaves with long petioles; leaflets lanceolate, acuminate, smooth, dark green. The Medicinal Plants of the Philippines Leaves 3 to 7 in. long, oval to oblong, pointed, thin, abruptly acute at base, finely serrate, on slender petioles, smooth above and glaucous below. Trees of the Northern United States Their Study, Description and Determination A finer fibre than the ordinary hemp is sometimes obtained in small quantities from the specially-selected edges of the petiole, and this material is used by the natives for weaving. The Philippine Islands Thus, in Passiflora and Viburnum Opulus, the so-called glands on the sides of the petiole appear to represent leaflets, and are not unfrequently developed as such. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Roots fibrous; stem-leaves 1–3, oblong or oval, clasping, mostly entire; the radical ones on short winged petioles, often toothed, rarely pinnatifid; peduncles 2–5. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Botanical Description.—A well-known tree growing to a height of 5–7 meters, with leaves alternate, simple, oval, heart-shaped at the base, sharply pointed, glabrous, short petioles. The Medicinal Plants of the Philippines The base of the petiole is hollowed to cover the bud. Trees of the Northern United States Their Study, Description and Determination It is an endogenous plant, the stem of which is enclosed in layers of half-round petioles. The Philippine Islands Funiculus: the main tendon of abdomen: in Hymenoptera a slender ligament connecting the propodeum to petiole on its dorsal aspect. Explanation of Terms Used in Entomology Capsule 10–20-seeded.—Leafy-stemmed perennials, glabrous except the ciliate petioles, not punctate, the leaves all opposite, but mostly in seeming whorls on the flowering branches. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Botanical Description.—A tree 10–20 meters high, with leaves opposite, elliptical, lanceolate, narrowed at both extremities, acuminate, entire, coriaceous, glabrous, 10–12 cm. long by 3–4 cm. broad, with short petioles. The Medicinal Plants of the Philippines Leaves 2� to 3� in. long, rhombic-ovate, acute at both ends, distinctly doubly serrate, bright green above; glaucous beneath when young; on petioles only 1/6 their length. Trees of the Northern United States Their Study, Description and Determination The plants being set out on high land are extremely seldom inundated, and a conflagration could not spread far amongst green leaves and sappy petioles. The Philippine Islands Peduncle: a stalk or petiole: the basal joint of the antenna in Homoptera: the smaller of the two stalks supporting the mushroom body; q.v. Explanation of Terms Used in Entomology Stem slender, soon reclined, the elongated branches often rooting in the mud; leaves ovate-lanceolate, mostly rounded at base, on slender petioles; corolla about the length of the calyx. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Leaves alternate, compound, digitate, caducous; leaflets 5–7 with long common petiole. The Medicinal Plants of the Philippines Smooth; leaves oblong-ovate to obovate, with a tapering base, sharply serrulate; petiole slender; color bright green, somewhat rusty beneath. Trees of the Northern United States Their Study, Description and Determination The first petioles forming the outer covering, and the slender central stem itself around which they cluster, are thrown away. The Philippine Islands Trim bud sticks to leave an inch of petiole on the bud. Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting Guelph, Ontario, September 3, 4, 5, 1947 Embryo large, with broad foliaceous cotyledons in thin albumen.—Perennial upright herbs, with thick and deep roots; peduncles terminal or lateral and between the usually opposite petioles, bearing simple many-flowered umbels, in summer. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Botanical Description.—A large tree of the first order with digitate leaves of 6–8 leaflets, broad, oval, very acute, tough, glabrous, growing on a long common petiole. The Medicinal Plants of the Philippines Leaves thin, oblong-ovate, taper-pointed, distinctly and often coarsely toothed; petioles and midrib ciliate with soft silky hairs when young, soon almost naked. Trees of the Northern United States Their Study, Description and Determination When these fibres are woven together with the slender filament drawn from the edges of the hemp petiole, the manufactured article is called Husi. The Philippine Islands We throw a wrap over the bud, shoulders even though it may press the petiole forward against the bud. Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting Guelph, Ontario, September 3, 4, 5, 1947 Smooth swamp herbs with leaves few or reduced to hollow cylindrical petioles. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Botanical Description.—A plant 1° high, with a creeping, glabrous stem, leaves horizontal, ternate with common long petiole. The Medicinal Plants of the Philippines Leaves 2 to 4 in. long, lanceolate or ovate-lanceolate, attenuate-cuspidate, pale or glaucous beneath, with long slender petioles; stipules minute and soon falling. Trees of the Northern United States Their Study, Description and Determination One of the bud worms is sometimes very destructive to individual hickory trees which have developed colonies, the larvae destroying the axillary buds, and burrowing into the base of the petioles of leaves. Northern Nut Growers Association Report of the Proceedings at the Second Annual Meeting Ithaca, New York, December 14 and 15, 1911 Each of these is inserted on the petiole by means of pulvinule. Sir Jagadis Chunder Bose His Life and Speeches Small glabrous creeping perennials, rooting in the mud, with small simple umbels and leaves reduced to hollow cylindrical jointed petioles. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Common petioles long, cleft at the base and disposed in whorls around and on the end of the stem. The Medicinal Plants of the Philippines Leaves thickish, ovate-lanceolate, with a rounded base, a very long acuminate point, and a glandular petiole; when mature, smooth and shining on both sides. Trees of the Northern United States Their Study, Description and Determination The adult beetles, when they come out in June and July, attack the petioles, leaves, and terminal buds for food, then go down to the larger branches and trunks, and burrow to lay their eggs. Northern Nut Growers Association Report of the Proceedings at the Second Annual Meeting Ithaca, New York, December 14 and 15, 1911 Leaves oval, from seven to ten inches long, and six or seven inches broad, produced on long petioles. The Field and Garden Vegetables of America Containing Full Descriptions of Nearly Eleven Hundred Species and Varietes; With Directions for Propagation, Culture and Use. We calculated that each leaf was upwards of twenty feet long, including the petioles or stalks. My First Voyage to Southern Seas Leaflets ovate, acute, obtusely serrate, small transparent vesicles on the surface, spines on the midrib and common petiole. The Medicinal Plants of the Philippines Leaves evergreen, scattered, flat, narrowed to a green petiole, appearing 2-ranked by the direction they take, whitened beneath. Trees of the Northern United States Their Study, Description and Determination Doctor Pelt mentions the value of spraying the trees in summer to kill adults when they are feeding on the petioles and probably the terminal buds and younger twigs. Northern Nut Growers Association Report of the Proceedings at the Second Annual Meeting Ithaca, New York, December 14 and 15, 1911 The large petioles of this tree spread out at the base into broad fibrous sheets, which enclose the trunk. In the Eastern Seas Black, with the scale of the petiole, thorax, coxæ, and femora blood-red. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves medium lanceolate, serrate, the apex notched, petioles winged. The Medicinal Plants of the Philippines Leaves � in. long, very stiff, sharp-pointed, spreading broadly from the branches in all directions, dark green above and white beneath; petioles very short, dilated lengthwise at the point of attachment of the branches. Trees of the Northern United States Their Study, Description and Determination Winter Buds and Leaves.—Buds small, reddish-brown, ovate to oval, acutish, partially hidden by enlarged base of petiole. Handbook of the Trees of New England The leaves, as soon as they have grown to a sufficient size, are plucked off, and the petiole and part of the midrib are cut away. In the Eastern Seas Abdomen oblong-ovate, the apical margins of the segments narrowly pale testaceous; the scale of the petiole compressed, with its superior margin rounded. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves glabrous, odd-pinnate, petioles very long; leaflets entire, opposite, short-petiolate, acute, oblique at the base. The Medicinal Plants of the Philippines Leaves broad, simple, alternate, stipulate, deciduous, deeply cut or lobed at the apex, alike on both surfaces, with long petioles. Trees of the Northern United States Their Study, Description and Determination Winter Buds and Leaves.—Buds rounded, dark reddish-brown, more or less downy, smaller than those of the white ash, partially covered by the swollen petiole. Handbook of the Trees of New England For culinary purposes the stalk, or petiole of the broad leaf, is used. Herbal Simples Approved for Modern Uses of Cure Abdomen ovate, the scale of the petiole incrassate and slightly notched above. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves dark green, lustrous, alternate, lanceolate, entire; short petioles. The Medicinal Plants of the Philippines The adults feed upon the shoots and leaf petioles. Northern Nut Growers Association, report of the proceedings at the eighth annual meeting Stamford, Connecticut, September 5 and 6, 1917 The scar left on the twig where the petiole was attached. Handbook of the Trees of New England The buttonbush has the ash-colored cocoon of the giant silkworm, made out of a rolled leaf, the petiole of which is fastened to the branch with silk. Some Winter Days in Iowa Abdomen more or less fuscous, the node of the petiole narrow and pointed above; the entire insect is smooth and shining. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Common petiole with 2 awl-shaped stipules at the base. The Medicinal Plants of the Philippines They fly to the trees and eat small holes chiefly at the base of the leaf petioles, but must early go into winter quarters as they are seldom seen after the first week in September. Northern Nut Growers Association, report of the proceedings at the eighth annual meeting Stamford, Connecticut, September 5 and 6, 1917 The large, dark green, "flabby" leaves, with closed sinuses and with densely pubescent petioles and lower surfaces, quickly distinguish this tree from the ordinary forms of the sugar maple. Handbook of the Trees of New England The petioles are long, pale purplish, rose-colored, sprinkled with small purplish spots. Scientific American Supplement, No. 508, September 26, 1885 The singular form of the thorax of this species, as well as the construction of the nodes of the petiole, appear to indicate an uncharacterized division of the genus Myrmica. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Secondary petioles: that of the middle leaflet long, bearing 2 glands, those of the others short, bearing 1 gland each. The Medicinal Plants of the Philippines The base of a petiole becomes enlarged two or three times, and you will find one white worm at the bottom. Northern Nut Growers Association, report of the proceedings at the eighth annual meeting Stamford, Connecticut, September 5 and 6, 1917 With leaflets all standing on summit of petiole. Handbook of the Trees of New England Holes in the base of the petioles of these leaves are also signs of the working of the insect. Studies of Trees The first node of the petiole somewhat wedge-shaped, the second globose, the abdomen very smooth and shining; club of the antennæ 3-jointed. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Common petiole with 2 stipules at the base. The Medicinal Plants of the Philippines It is a very ornamental plant, and has remarkable pinnate leaves with winged petioles. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. Borassus commences to be common; it is a taller, and more slender tree than that of Coromandel, and the trunk is not covered with the persistent bases of the petioles. Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries The petioles are expanded into sheaths; hence the leaves wither on the stem. Scientific American Supplement, No. 829, November 21, 1891 Entirely pale rufo-testaceous, excepting the eyes and abdomen which are jet black; the nodes of the petiole pale, smooth, and shining. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Principal petiole with one glandule at the base and often another higher up. The Medicinal Plants of the Philippines R. compactum, native of Tartary, another species yielding French rhubarb, and often cultivated in Britain for its acid petioles. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. The stipulæ of Ficus obviously belong not to the leaves, their insertion taking place ½ a line above that of the petiole. Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries It is a sensitive shrub, retreating at man's approach, its petioles folding from sight, but with all its modesty it left me a stinging reminder that I had failed to respect its privacy. White Shadows in the South Seas Abdomen very smooth and shining; the node of the petiole incrassate and tapering upwards into an acute spine. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves simple, oval, oblong, without stipules, with short petioles. The Medicinal Plants of the Philippines Its petioles are much used for their acid properties. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. I see no reason why the stipulæ of Rosæ are not to be considered as belonging to, or dilatations of the petiole. Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries Almost all my nests have been built on the neem tree, the long slender petioles of which are admirably adapted for its suspension. The Nests and Eggs of Indian Birds, Volume 1 Reddish-brown, covered with a thin cinereous pubescence; the clypeus acutely angular anteriorly; the metathorax oblique and delicately striated transversely; wings fusco-hyaline; the petiole of the abdomen long, the segment campanulated and narrow. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Common petiole clasps the stem at the base. The Medicinal Plants of the Philippines From the root arise slender petioles upon which the leaves stand, and several herbaceous erect stalks come out between them, rising to the height of about two feet. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. The development of the lamine before the petiole is particularly conspicuous in this plant. Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries On many of the branches the leaflets had fallen off and left nothing but the flat leafy petioles to represent them. Three Expeditions into the Interior of Eastern Australia, Volume 2 Abdomen with a short petiole to the basal segment, which is very short and campanulate; at its posterior margin are two minute, obscure, pale spots; beneath, the margins of the apical segments are rufo-piceous. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves opposite, lanceolate, acute, smooth on both faces, 12–15 cm. long by 3–4 broad, petioles short. The Medicinal Plants of the Philippines The petioles and peduncles contain numerous spiral vessels, which have been used for wicks of candles. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. All men who attended had a head-dress made of the leaf petiole of the betel tree and the red leaves of the dongola plant. The Head Hunters of Northern Luzon The first segment of abdomen has the petiole black. Three Expeditions into the Interior of Eastern Australia, Volume 1 Abdomen velvety black and globose; the scale of the petiole produced laterally into long, bent, acute spines, which curve backwards to the shape of the abdomen. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Flowers monœcious, greenish, axillary; the staminate growing along the common petiole above the pistillate. The Medicinal Plants of the Philippines The foliage of the plantain affords food and bedding, and is used for thatch, making paper, and basket making; and from its petioles is obtained a fine and durable thread. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. These stems are covered with scars or scales, which have been caused by the separation of the petioles or leaf-stalks, and this gives rise to the name which the genus bears. The Story of a Piece of Coal What It Is, Whence It Comes, and Whither It Goes In walking across these thick beds of mimosae, a broad track was marked by the change of shade, produced by the drooping of their sensitive petioles. The Voyage of the Beagle The scale of the petiole produced above on each side, into a long, curved, stout, acute spine, which curves backwards round the sides of the abdomen. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Common petioles thorny, with 4 leaf-like stipules at the base. The Medicinal Plants of the Philippines It has pinnate leaves on graceful and slender common petioles, and usually grows in swampy places. The Gutenberg Webster's Unabridged Dictionary Section P and Q Branches very thick, and they, as well as the long petioles and underside of the leaves clothed with dense white wool. Journal of an Expedition into the Interior of Tropical Australia The young plant usually arises most readily from the leaf-stalk or petiole. Manual of Gardening (Second Edition) Thorax rounded above, the sides not margined; two spines on the thorax anteriorly, two on the metathorax, and two on the scale of the petiole; the legs elongate, with the anterior tibiæ ferruginous. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Common petiole swollen at the base, 2 stipules and 1 glandule. The Medicinal Plants of the Philippines The leaves are borne in a terminal crown, and are supported on stout, sheathing, often prickly, petioles. The Gutenberg Webster's Unabridged Dictionary Section P and Q Leaves: Exceedingly variable; those under water usually long and grass-like; upper ones sharply arrow-shaped or blunt and broad, spongy or leathery, on long petioles. Wild Flowers Worth Knowing In the OEnothera gigas the rosette leaves are broadly lanceolate with obtuse or rounded tips, more crinkled than in Lamarckiana, petioles shorter. Hormones and Heredity Abdomen globose; the scale of the petiole with two long curved acute spines, directed backwards to the curve of the abdomen. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Common petiole with 2 horizontal stipules at the base. The Medicinal Plants of the Philippines The wood, petioles, leaves, sap, and fruit of many species are invaluable in the arts and in domestic economy. The Gutenberg Webster's Unabridged Dictionary Section P and Q Leaves: Finely cut, thrice compound, pale beneath, on slender petioles, all from base. Wild Flowers Worth Knowing The natives affirm that the flowing is more abundant when the petioles of the leaves, which remain fixed to the trunk, are burnt. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 Abdomen globose and pubescent; the scale of the petiole compressed, its superior margin rounded, and with four minute teeth. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Common petiole with two thorns united at its base and a small glandule on the upper part. The Medicinal Plants of the Philippines The terrestrial plants are erect, nearly simple, more or less hispid throughout, with lanceolate leaves and short petioles, often nearly sessile. Species and Varieties, Their Origin by Mutation A modification of the petiole forms a deep, hollow pitcher having for its spout a modification of the blade of the leaf. Wild Flowers Worth Knowing Leaves: narrow-linear, acutely acuminate, with the point often recurved, entire, rather thick, narrowed into a short petiole, two to four inches long; fruit unknown. The History of Australian Exploration from 1788 to 1888 Abdomen: the second segment slightly narrowed at its base, the node of the petiole incrassate and compressed, its upper margin rounded. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology M. tinctoria, Roxb., is a climbing shrub with leaves opposite, ovate, keeled; petioles very short; flower and fruit like the foregoing species. The Medicinal Plants of the Philippines Some species of the genus Acacia bear bipinnate leaves, while others have no leaves at all, but bear broadened and flattened petioles instead. Species and Varieties, Their Origin by Mutation Leaves: From the root, on long petioles, broadly oval or rounded, heart-shaped at base, rather thick. Wild Flowers Worth Knowing Every skeleton reposes in a sort of basket made of the petioles of the palm-tree. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 Abdomen with a slender subelongate petiole, and with a thin, silky, grey pile; the apical margins of the segments narrowly and obscurely rufo-piceous. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Botanical Description.—A slender, twining plant with leaves 3′ by 1′, opposite, oval, acute, entire, long petioles and caducous stipules. The Medicinal Plants of the Philippines The aquatic form has floating or submerged stems with oblong or elliptic leaves, which are glabrous and have long petioles. Species and Varieties, Their Origin by Mutation Leaves: About 1 in. wide, compounded of 3 rounded, clover-like leaflets with prominent midrib borne at end of slender petioles, springing from root. Wild Flowers Worth Knowing The whole tree is quite glabrous except the petioles, which are clothed with a dense pubescence. Hardy Ornamental Flowering Trees and Shrubs Abdomen: the petiole as long as the thorax, narrowest at the base of the abdomen; it is rugose at the base; the ovipositor pale testaceous. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaflets oval, entire, hoary below, no secondary petioles. The Medicinal Plants of the Philippines Later leaves are more nearly like the parent-type, but the petioles remain short. Species and Varieties, Their Origin by Mutation Leaves: Oblong or spatulate, 3 to 12 in. long, narrowed into petioles, all from fibrous roots. Wild Flowers Worth Knowing It is a spreading shrub, about 6 feet high, with rotundate, glaucous leaves, on long petioles. Hardy Ornamental Flowering Trees and Shrubs Abdomen petiolated, the petiole as long as the abdomen; the ovipositor as long as the petiole and abdomen united. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The leaves are alternate, in pairs; extended, lanceolate blade, with a short petiole. The Medicinal Plants of the Philippines They are acute at the apex and gradually narrowed into the petiole. Species and Varieties, Their Origin by Mutation Leaves: Opposite, on slender petioles; lower ones rounded, 2 to 4 in. broad, palmately cut into 2 to 5 lobes; upper leaves narrower, 3-cleft or 3-toothed. Wild Flowers Worth Knowing It is a pretty twining evergreen, with the leaves placed on long slender petioles, and palmately divided into usually five leaflets. Hardy Ornamental Flowering Trees and Shrubs Abdomen: the basal segment campanulate, the petiole short; a narrow yellow fascia on the apical margin of all the segments. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The edges of the petioles, which contain much finer fiber than the middle parts, are separately divided into strips an inch wide, and with strong pressure are drawn several times under the knife. The Former Philippines thru Foreign Eyes While this subject is under consideration, the tendrils of the Pea and Bean and the twining petioles of the Nasturtium will be interesting for comparison. Outlines of Lessons in Botany, Part I; from Seed to Leaf Leaves: Opposite, lance-shaped, saw-edged, on slender petioles; aromatic; bracts and upper leaves whitish or the color of flower. Wild Flowers Worth Knowing In each leaf, at the base of the laminae, the petiole, or stalk, is furnished with a couple of pouches, divided from each other by the mid-rib, as shown in the figure. The Naturalist in Nicaragua Abdomen aciculate as in the worker, but much more deeply strangulated between the first and second segments; the petiole rugose and clavate. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The fibers of the inner petioles, which are softer but not so strong as the outer, are called tupus, and sold with bandala, or mixed with tapis and used in the native weaving. The Former Philippines thru Foreign Eyes Tendrils and leaf petioles are often sensitive to the touch. Outlines of Lessons in Botany, Part I; from Seed to Leaf Leaves: Oblong to lance-shaped, upper ones seated on stem; lower ones narrowed into petioles. Wild Flowers Worth Knowing It feeds upon the leaves, devouring all but the petiole, and often entirely defoliating both gooseberry and currant bushes. Success with Small Fruits Abdomen ovate, the first node of the petiole oblong, the second globose. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology These petioles contain a quantity of bast fiber, which is used as string, but otherwise is of no commercial value. The Former Philippines thru Foreign Eyes Some have a stalk, or petiole, others are joined directly to the stem. Outlines of Lessons in Botany, Part I; from Seed to Leaf Leaves: Upper ones lance-shaped; lower ones often 1 ft. long, wavy-lobed, often pinnatifid, taper pointed, narrowed into flat petioles. Wild Flowers Worth Knowing Some, however, are seated on the margins of the membrane; and the short ventral surface of the bladder, between the petiole and valve, is thickly covered with glands. Insectivorous Plants Abdomen petiolated; a fascia on the apical margins of all the segments, and the petiole, yellow; the third and following fasciæ narrowest; all the fasciæ continued beneath the abdomen. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The outer stem consists of crescent-shaped petioles crossing one another alternately, and encircling the thin main stem. The Former Philippines thru Foreign Eyes In some of them, as a rose-leaf, for instance, there are two appendages at the base of the petiole, called stipules. Outlines of Lessons in Botany, Part I; from Seed to Leaf Cyclamen Persicum: seedling, figure enlarged: c, blade of cotyledon, not yet expanded, with arched petiole beginning to straighten itself; h, hypocotyl developed into a corm; r, secondary radicles. The Power of Movement in Plants The outside of the leaves and the petioles are covered with minute two-armed papillae, evidently answering to the eight-rayed papillae of Dionaea. Insectivorous Plants Abdomen ovate, smooth, shining, and with a scattered fulvous pubescence; the first node of the petiole rounded in front, narrowed and truncate behind, with a large compressed tooth beneath; the second node subglobose. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology A rare nest was composed of fresh leaves of the Moreton Bay ash, with the petioles towards the centre, forming a complex green star. Confessions of a Beachcomber He further shows that the nectar-secreting glands on the petioles of Prunus avium are not developed at a very early age, yet wither away on the old leaves. Effects of Cross and Self Fertilisation in the Vegetable Kingdom In this and the following species the end of the petiole, where united to the blade, is developed into a pulvinus. The Power of Movement in Plants The bilobed leaf appears also to be rather larger and somewhat broader, with the pedicel by which it is attached to the upper end of the petiole a little longer. Insectivorous Plants Abdomen ovate, smooth and shining; the nodes of the petiole rugose. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves: Basal ones rounded, on long petioles; upper leaves oblong or lance-shaped, toothed or entire-edged, short petioled or seated on stem. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The axis, the main petiole, and the terminal leaflets are all, when the temperature is high, in constant movement, just like that of climbing plants. More Letters of Charles Darwin — Volume 2 Filaments were therefore fixed horizontally to two hypocotyls close beneath the petioles of their cotyledons. The Power of Movement in Plants The petiole of the leaf is quite insensible. Insectivorous Plants Abdomen ovate, the node of the petiole incrassate, and viewed sideways is triangular or wedge-shaped. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves: Heart-shaped, palmately ribbed, dark green, thin, on stout petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors I have no doubt, from various facts, that the downward movement of the terminal leaflets and petioles from shaking and syringing is to save them from injury from warm rain. More Letters of Charles Darwin — Volume 2 The chief cause of the rising movement lies in the straightening of the blade, but the short petiole rises between 4o and 5o. The Power of Movement in Plants A few tentacles spring from the base of the footstalk or petiole, and these are the longest of all, being sometimes nearly 1/4 of an inch in length. Insectivorous Plants Abdomen ovate; the scale of the petiole sub-incrassate, with its margin rounded above; the insect very thinly covered with a fine cinereous pile. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves: >From the root, on long petioles, broadly oval or rounded, heart-shaped at base, rather thick. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors When the plant goes to sleep, the terminal leaflets hang vertically down, but the petioles move up towards the axis, so that the dependent leaves are all crowded round it. More Letters of Charles Darwin — Volume 2 A young cotyledon or leaf after bursting free is brought down into its proper position, as already remarked, by epinasty, which, according to De Vries, long continues to act on the midribs and petioles. The Power of Movement in Plants The petioles bear many multicellular hairs, some of which near the blade are surmounted, according to Nitschke, by a few rounded cells, which appear to be rudimentary glands. Insectivorous Plants Abdomen immaculate, with a minute spot on the posterior border of the petiole; the third and following segments with a fine cinereous pile. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves: 2, opposite or nearly so, on the stem, compounded of 3 ovate and toothed leaflets; also larger, broader leaves on larger petioles from the rootstock. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors Some appearances make me think that they abort by becoming confluent with the main petiole. More Letters of Charles Darwin — Volume 2 Heliotropism prevails so extensively among the higher plants, that there are extremely few, of which some part, either the stem, flower-peduncle, petiole, or leaf, does not bend towards a lateral light. The Power of Movement in Plants Their broad petioles terminate in from four to six rigid projections,* each tipped with a stiff, short bristle. Insectivorous Plants Abdomen: with an elongate clavate petiole; the first segment with an oblique yellow macula on each side, the third with a large lateral macula at its base, and the following segments entirely yellow. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves: Compounded of 3 to 5 ovate, pointed, and irregularly saw-edged leaflets, downy beneath, on bristly petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors In Mutisia clematis, the tendril, in shape and colour, closely resembles the petiole of one of the ordinary leaves, together with the midribs of the leaflets, but vestiges of the laminae are still occasionally retained. The Movements and Habits of Climbing Plants Six young seedlings were selected, the hypocotyls of which were nearly .45 inch, excepting one, which was .6 inch in height, measured from the bases of their petioles to the ground. The Power of Movement in Plants The leaves, down even to the bases of the glossy petioles, are of a rich dark-green colour, and free from spines. The Naturalist on the River Amazons The thorax is sculptured as in the other sex; the petiole more elongate and slender, the basal joint black, the second and the first segment ferruginous beneath; the rest of the abdomen blue. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves: A few seated on stem, lance-shaped to narrowly oblong; or lower ones crowded, spatulate, on slender petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The most different organs—stems, branches, flower-peduncles, petioles, mid-ribs of the leaf and leaflets, and apparently aerial roots—all possess this power. The Movements and Habits of Climbing Plants The movement of the main petiole seems to be variable; we have seen it in the evening 27o lower than during the day; but sometimes in nearly the same position. The Power of Movement in Plants I have seen as many as seventeen petioles of a Clematis projecting from the mouth of one burrow, and ten from the mouth of another. The formation of vegetable mould through the action of worms, with observations on their habits Differs from the female in having the clypeus entirely yellow, the metathorax and abdomen entirely black; only the apical margin of the petiole is yellow, it is also longer. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The leaves, which are lance-shaped or oblong, gradually increase in size and length of petiole until the lowest often measure nine inches long. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors A thin stick placed so as to press lightly against a petiole, having a leaflet a quarter of an inch in length, caused the petiole to bend in 3 hrs. The Movements and Habits of Climbing Plants The pinnae move forwards and at the same time sink downwards, whilst the main petiole rises considerably. The Power of Movement in Plants That these petioles had been dragged into the burrows for plugging them up, and not for food, was manifest, as neither end, as far as I could see, had been gnawed. The formation of vegetable mould through the action of worms, with observations on their habits Abdomen: the petiole and the following segment red, the base of the third also slightly red; the three apical segments obscurely blue, with a thin glittering pile. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves: Alternate, lower ones on long petioles, 6 to 10 in. long, pinnately divided into 5 to 7 oblong, sharply toothed, acute leaflets or segments; upper leaves similar, but smaller, and with fewer divisions. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The petioles of a leaf, so young that none of the leaflets were expanded, had partially seized a twig. The Movements and Habits of Climbing Plants These petioles bend down geotropically like a root and penetrate the ground, so that the true root, which afterwards becomes greatly enlarged, is buried at some little depth beneath the surface. The Power of Movement in Plants This anomaly was however readily explained as soon as the thick basal part was examined; for in 78 out of 103 petioles, this part had been gnawed by worms, just above the horse-shoe shaped articulation. The formation of vegetable mould through the action of worms, with observations on their habits Head with the fore black band interrupted; eyes with very long petioles, the latter about three-fourths of the length of the body; scutellum green; femora tawny towards the base. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Kerner claims that nectar is secreted in the leaves of this species, whether in the two glands that appear at the top of the petioles or not, he does not say. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors In older plants the petioles of quite young leaves, and of leaves as much as an inch and a quarter in diameter, are sensitive. The Movements and Habits of Climbing Plants If we look, for instance, at a great acacia tree, we may feel assured that every one of the innumerable growing shoots is constantly describing small ellipses; as is each petiole, sub-petiole, and leaflet. The Power of Movement in Plants Out of 121 petioles extracted from burrows early in February, 68 were imbedded by the base, and 53 by the apex. The formation of vegetable mould through the action of worms, with observations on their habits Eyes with short petioles, extending a little beyond the sides of the thorax; scutellum blackish purple. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Long, lance-shaped, pointed leaves, the edges of lower ones especially sharply saw-toothed, their upper surface rough, and underneath soft-hairy, are on slender, short petioles, the lower ones opposite, the upper ones alternate. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors A young petiole, when rubbed, became slightly curved in 17 m.; and afterwards much more so. The Movements and Habits of Climbing Plants We have met with only one exception, and that only a partial one, namely, with the petioles of the two first leaves of Acanthus candelabrum. The Power of Movement in Plants They also consume a large number of half-decayed leaves of all kinds, excepting a few which have an unpleasant taste or are too tough for them; likewise petioles, peduncles, and decayed flowers. The formation of vegetable mould through the action of worms, with observations on their habits The scale of the petiole narrow, incrassate, its anterior margin slightly curved, its posterior margin straight; the abdomen ovate. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology The firm, oblong leaves, taper pointed at the apex and saw-edged, are rough above, the lower leaves opposite each other on petioles, the upper alternate. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The shoots do not twine spirally, but climb excellently by the aid of their young and sensitive petioles. The Movements and Habits of Climbing Plants In some species the petioles rise up greatly at night, and the pinnae close together. The Power of Movement in Plants Not only leaves, but petioles of many kinds, some flower-peduncles, often decayed twigs of trees, bits of paper, feathers, tufts of wool and horse- hairs are dragged into their burrows for this purpose. The formation of vegetable mould through the action of worms, with observations on their habits The node of the petiole incrassate, very slightly elevated; viewed sideways, broadly wedge-shaped; the abdomen ovate. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology Leaves: From the root, on long petioles, rounded or heart-shaped, scalloped-edged, often purplish; stem leaves variable, lance-shaped or lyrate, deeply cut, sessile. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors A loop of thread, weighing one-eighth of a grain, caused, after 12 hrs. and before 20 hrs, had elapsed, a considerable curvature; but it was never fairly clasped by the petiole. The Movements and Habits of Climbing Plants The summit of the petiole was then secured to a stick, and the separate leaflets were found to be continually circumnutating. The Power of Movement in Plants Some of these objects, such as the petioles just named, feathers, &c., are never gnawed by worms. The formation of vegetable mould through the action of worms, with observations on their habits The scale of the petiole narrow, with its margin rounded above; abdomen ovate, and sprinkled with a few erect pale hairs. Journal of the Proceedings of the Linnean Society - Vol. 3 Zoology A modification of the petiole forms a deep hollow pitcher having for its spout a modification of the blade of the leaf. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors When the stem twines round a somewhat thick stick, a slight degree of sensitiveness possessed by the petioles is brought into play, and the whole leaf together with the tendril winds round it. The Movements and Habits of Climbing Plants These are at first directed back towards the centre of the plant; but they gradually rise up and soon stand at right angles to the petiole, and ultimately in nearly a straight line with it. The Power of Movement in Plants Petioles.—We will now turn to the petioles or foot-stalks of compound leaves, after the leaflets have fallen off. The formation of vegetable mould through the action of worms, with observations on their habits Or the blade and the upper part of the petiole may both move. The Power of Movement in Plants Leaves: Opposite, compounded of 3 egg-shaped, pointed leaflets on slender petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The leaves are so small compared with those of most of the other species, that the petioles at first seem ill-adapted for clasping. The Movements and Habits of Climbing Plants It has already been stated that the pinnae move independently of the main petiole. The Power of Movement in Plants It is thus evident that the thick basal end of the petiole is drawn in not solely for the sake of plugging up the mouths of the burrows, but as food. The formation of vegetable mould through the action of worms, with observations on their habits In the case of many plants, the petioles move at night in one direction and the leaflets in a directly opposite one. The Power of Movement in Plants Leaves: Alternate, oblong or ovate, finely saw-edged above the middle at least, green on both sides, tapering at base into short petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The clasped petiole in the course of two or three days swells greatly, and ultimately becomes nearly twice as thick as the opposite one which has clasped nothing. The Movements and Habits of Climbing Plants At the same time they bend downwards in a plane at right angles to that of their former position, until their midribs form an angle of about 45o with the upper part of the petiole. The Power of Movement in Plants Even the narrow truncated tips of some few petioles had been gnawed; and this was the case in 6 out of 37 which were examined for this purpose. The formation of vegetable mould through the action of worms, with observations on their habits The leaflets of Cassia Barclayana moved so little at night that they could not be said to sleep, yet the petioles of some young leaves rose as much as 34o. The Power of Movement in Plants Leaves: All spreading from the base by margined petioles; shining leathery green, round or broadly oval, obtuse, 1 1/2 to 3 in. long, persistent through the winter. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors In C. viticella the sensitiveness has spread to the petioles of the seven leaflets, and to the subdivisions of the basi-lateral sub- petioles. The Movements and Habits of Climbing Plants The main petiole does not become depressed, at least during the evening. The Power of Movement in Plants Thus, out of 37 petioles inserted by their tips, 5 had been previously drawn in by the base, for this part had been gnawed. The formation of vegetable mould through the action of worms, with observations on their habits We have noticed in some other genera that the petioles of very young plants rise much more at night than do those of older plants. The Power of Movement in Plants The leaves, which are pinnately divided into from three to five leaflets, cleft or lobed, chiefly arise on long petioles from a cluster of thickened fibrous roots. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors But in this latter species it has diminished in the basal part of the main petiole, in which alone it resided in C. montana; whilst it has increased in the abruptly bent terminal portion. The Movements and Habits of Climbing Plants The main petiole sinks downwards during the day till late in the evening, and rises until very early in the morning. The Power of Movement in Plants At this season, therefore, worms drag these petioles into their burrows indifferently by either end, a slight preference being given to the base. The formation of vegetable mould through the action of worms, with observations on their habits They thus become imbricated with their midribs parallel to the petiole. The Power of Movement in Plants Leaves: Palmately compound, of 3 heart-shaped, clover-like leaflets on long petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors Some other petioles similarly rubbed twice, that is, once up and once down, became perceptibly curved in about 2 hrs. The Movements and Habits of Climbing Plants Here therefore there is in the evening the same conversion of a circumnutating into a steady movement in one direction, as in the case of the main petiole. The Power of Movement in Plants A large number of the petioles of the ash are drawn in by the base; but this part serves the worms as food. The formation of vegetable mould through the action of worms, with observations on their habits We shall immediately see that the main petiole is likewise continually circumnutating, as is each separate pinna and each separate leaflet. The Power of Movement in Plants The leaves clasp the stem by deep ear-like or arrow-shaped lobes, or the large lower ones are on petioles, lyrate-pinnatifid, the terminal division commonly large and triangular; the margins all toothed. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors I mention this species only because I have seen many proofs that the petioles in a state of nature are excited to movement by very slight pressure. The Movements and Habits of Climbing Plants Nevertheless, a sinking movement in the evening and a rising one during the night is probably the normal course, for this was well-marked in the petiole of the first-formed true leaf. The Power of Movement in Plants As the ascending and descending lines do not coincide, the petiole manifestly circumnutates; the great evening fall and nocturnal rise being an exaggeration of one of the circumnutations. The Power of Movement in Plants Moreover, the petiole as a whole commonly either rises or sinks at night. The Power of Movement in Plants Leaves: Upper ones lance shaped; lower ones often 1 ft. long, wavy-lobed, often pinnatifid, taper pointed, narrowed into flat petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The petioles of very young leaves about one-tenth of their full size, are highly sensitive, and bend towards the side which is touched; but they do not move quickly. The Movements and Habits of Climbing Plants The sinking movement is due to the downward curvature of the petiole, no part of which exhibits any structure like that of a pulvinus. The Power of Movement in Plants This movement is sometimes large: thus the petioles of Cassia pubescens stand only a little above the horizon during the day, and at night rise up almost, or quite, perpendicularly. The Power of Movement in Plants The petioles of the younger leaves of Desmodium gyrans also rise up vertically at night. The Power of Movement in Plants Leaves: Opposite, ovate, upper ones united by their bases to form a cup; lower ones large, coarsely toothed, and narrowed into margined petioles; all filled with resinous juice. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors A curvature was perceptible in one petiole in between 4 hrs. The Movements and Habits of Climbing Plants Lastly, the main petiole rises at night, but with leaves of different ages to very different degrees, namely some rose through an angle of only 12o, and others as much as 41o. The Power of Movement in Plants Generally, when the rising or sinking of several petioles on the same plant was measured, the amount differed greatly. The Power of Movement in Plants Species in the same genus often differ widely in the movements of their petioles. The Power of Movement in Plants Leaves: Oblong or spatulate 3 to 12 in. long, narrowed into petioles, all from fibrous roots. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The petioles, when coming into contact with a stick, take either a complete or half a turn round it, and ultimately increase much in thickness. The Movements and Habits of Climbing Plants The petioles, which during the day are inclined only a little above the horizon, rise at night in a remarkable manner, and stand nearly or quite vertically. The Power of Movement in Plants The seat of movement generally lies in the petiole, but sometimes both in the petiole and blade, or in the blade alone. The Power of Movement in Plants The petioles rise direct from the ground, and are from 5 to 7 inches in length. The Power of Movement in Plants The solitary "flower" on a scape as long as the petioles of leaves, and, like them, sheathed at base. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The young petioles, when brought by the revolving movement into contact with sticks, clasped them, and soon increased considerably in thickness. The Movements and Habits of Climbing Plants A petiole, the movement of which was measured, rose 8o at night. The Power of Movement in Plants The main petiole is curved slightly downwards during the day, but straightens itself at night. The Power of Movement in Plants The petioles apparently did not rise at all. The Power of Movement in Plants Leaves: About 1 in. wide, compounded of 3 rounded, clover-like leaflets with prominent midrib, borne at end of slender petioles, springing from root. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The medial petiole and the lateral sub- petioles are sensitive, especially the much bent terminal portion. The Movements and Habits of Climbing Plants With respect to the leaflets, they move at night towards the apex of the petiole until their midribs stand nearly parallel to it; and they then lie neatly imbricated one over the other. The Power of Movement in Plants The petioles are inclined upwards during the day, but sink at night, so as to stand at about right angles with the stem. The Power of Movement in Plants Similar observations were made on another petiole, with nearly the same result. The Power of Movement in Plants Leaves: Opposite, lance-shaped, saw-edged, on slender petioles, aromatic, bracts and upper leaves whitish or the color of flower. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors Full-grown petioles are not in the least sensitive. The Movements and Habits of Climbing Plants The bending portion does not present any external or internal difference in structure from the rest of the petiole. The Power of Movement in Plants The petioles become at night downwardly curved, either through their entire length or in the upper part alone; and this apparently causes the depression of the blade. The Power of Movement in Plants The leaflets are small, of a paler green and more tender consistence than the foliaceous petioles. The Power of Movement in Plants Leaves: Large, the lower ones often 1 ft. long, broadly ovate, entire edged, pale or loosely cottony beneath, on hollow petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors A loop of thread weighing 0.125th of a grain caused another petiole to curve. The Movements and Habits of Climbing Plants It was afterwards ascertained that the above movement was compounded of the circumnutation of the stem on a small scale, of the main petiole which moved most, and of the sub-petiole of the terminal leaflet. The Power of Movement in Plants Oxalis bupleurifolia: circumnutation of foliaceous petiole, filament fixed obliquely across end of petiole; movements traced on vertical glass from 9 A.M. The Power of Movement in Plants The plant growing in a pot was kept in a high temperature, the petiole of the leaf to be observed pointing straight at the observer, being separated from him by a vertical pane of glass. The Power of Movement in Plants Leaves: Exceedingly variable; those under water usually long and grasslike; upper ones sharply arrow-shaped or blunt and broad, spongy or leathery, on long petioles. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The petiole of a young leaf, after a slight rub, became curved in 6 m.; another, on a cold day, in 20 m., and others in from 8 m. to 10 m. The Movements and Habits of Climbing Plants The curvature of the summit of the petiole of the leaf figured asleep, is merely accidental. The Power of Movement in Plants The petiole was secured so that the basal joint, or pulvinus, of one of the lateral leaflets was at the centre of a graduated arc placed close behind the leaflet. The Power of Movement in Plants But we should remember that it was shown in the fourth chapter that the stem circumnutates, as no doubt does the main petiole and the sub-petioles; so that the movement represented in Fig. The Power of Movement in Plants Leaves: Thick, somewhat heart-shaped, their spreading or erect petioles 4 to 8 in. long. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors When a petiole has fairly clasped a stick, it is not able, on the removal of the stick, to straighten itself. The Movements and Habits of Climbing Plants We are led to an analogous conclusion with respect to the movements of the secondary petioles of certain pinnate leaves. The Power of Movement in Plants The leaflets, however, sometimes bend so much back that their midribs become parallel to and lie on the petiole. The Power of Movement in Plants The large terminal leaflet sleeps by sinking vertically down, whilst the petiole rises up. The Power of Movement in Plants Leaves: Opposite, on slender petioles, lance-shaped, rounded at base, harsh to the touch. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The main petiole carries three leaflets; but their short, sub-petioles are not sensitive. The Movements and Habits of Climbing Plants During 12 h. on the first day the petiole moved thrice downwards and twice upwards. The Power of Movement in Plants The movement of the terminal leaflet by means of its sub-petiole or pulvinus is quite as rapid, or even more so, than that of the main petiole, and has much greater amplitude. The Power of Movement in Plants In the latter plant the petiole at the same time rose 16 1/2o. The Power of Movement in Plants Leaves: Opposite, on slender petioles; lower ones rounded, 2 to 4 in. broad, palmately cut into 2 to 5 lobes; upper leaves narrower, 3-cleft or 3- toothed. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The meaning of these changes is obvious, namely, that the petioles may firmly and durably support the stem. The Movements and Habits of Climbing Plants It should, however, be observed that the petiole fell much lower down in the evenings than could be seen on the vertical glass or is represented in the diagram. The Power of Movement in Plants For instance, in the first of these four cases the petiole stood in the day at 23o, and at night at 69 1/2o above the horizon. The Power of Movement in Plants Oxalis Plumierii.—In this species the three leaflets do not surround the summit of the petiole, but the terminal leaflet projects in the line of the petiole, with a lateral leaflet on each side. The Power of Movement in Plants Leaves: A single pair, dark green, reniform, 4 to 7 in. broad, on downy petioles 6 to 12 in. high, from a creeping, thick, aromatic, pungent rootstock. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors This hook, the lateral petioles being directed a little upwards; forms an excellent grappling apparatus, by which the leaves readily become entangled with surrounding objects. The Movements and Habits of Climbing Plants Thus, in three genera of Phaseoleae the leaflets moved vertically downwards at night, and the petioles rose in two of them, whilst in the third they sank. The Power of Movement in Plants The petiole is rather long, and, one having been secured to a stick, the movement of the terminal leaflet was traced during 45 h. on a vertical glass. The Power of Movement in Plants The main petiole is in constant movement during the day, but no careful observations were made on it. The Power of Movement in Plants Leaves: Finely cut, thrice compound, pale beneath, on slender petioles, all from base Preferred Habitat - Rich, rocky woods. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The graduated difference in the extension of the sensitiveness in the petioles of the above-described species deserves notice. The Movements and Habits of Climbing Plants The movements of the petioles were observed in only three of these genera. The Power of Movement in Plants Linnaeus says that the leaves of his Sida abutilon sink perpendicularly down at night, though the petioles rise. The Power of Movement in Plants The main petiole rises a little at night, and the three leaflets rise till they become vertical, and at the same time approach each other. The Power of Movement in Plants Leaves: Tufted from the root, on hairy petioles 2 to 6 in. tall, compounded of 3 broadly oval, saw-edged leaflets. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors I took a twig, thinner than the petiole itself, and with it lightly rubbed several petioles four times up and down; these in 1 hr. The Movements and Habits of Climbing Plants |
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