| 单词 | nectary |
| 例句 | They open their fragrant nectaries at night in hopes of seducing night-flying moths for pollination. These fragrant flowers provide an aromatic treat after the sun goes down 2017-07-05T04:00:00Z The flowers are large, yellow, scented and a little drooping, with a corolla deeply cleft into six lobes, and a central bell-shaped nectary, which is crisped at the margin. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z Most insects of this family secrete copiously a sweetish fluid, called the honey dew, which is ejected from two little horns or nectaries, that project, one on each side of their bodies. American Pomology Apples 2011-10-03T02:00:29.477Z The evening made his joy-flowers close, folding their petals together above their nectaries; and an evening dew of melancholy fell ever heavier and thicker upon his soul as he went on his way. Flower, Fruit, and Thorn Pieces; or, the Wedded Life, Death, and Marriage of Firmian Stanislaus Siebenkaes, Parish Advocate in the Burgh of Kuhschnappel. 2011-05-20T02:00:42.297Z "In the mean time it is a butterfly, and visits the nectaries, which we day-birds will do also," appropriately observed Wilhelmi; but he took the words out of my mouth. The Campaner Thal and Other Writings 2011-04-26T02:00:29.827Z It was to such structures that the name of nectary was applied by old authors. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z But the stamens are in five sets, separated by five hairy nectaries. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History Bees whether solitary or social enter flowers for the sake of the honey in their nectaries and the pollen on their anthers. Wild Bees, Wasps and Ants and Other Stinging Insects Opposite each carpel is a small scale which functions as a nectary. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" In several closely allied genera, as in Dielytra, &c., there are two perfect nectaries, the pistil is straight, and the hood slips off on either side, according as the bee sucks either nectary. The Variation of Animals and Plants Under Domestication, Volume II (of 2) Certain structures occur on the petals of some flowers, which received in former days the name of nectaries. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z The Hunting Wasp takes her fill of honey drawn from the nectaries of the flowers, but feeds her little ones on game. The Glow-Worm and Other Beetles Section through a flower showing ov. the ovary; nec. the nectary or honey-glands; st. the style; li. the lip of the flower on which the bee alights. More Science From an Easy Chair The anthers and stigmas of flowers are probably nourished by the honey, which is secreted by the honey-gland called by Linneus the nectary; and possess greater sensibility or animation than other parts of the plant. The Temple of Nature; or, the Origin of Society A Poem, with Philosophical Notes Stamens 15, inserted on the border of the nectary by threes, forming a triangle. The Medicinal Plants of the Philippines These serve as nectaries, s, the whorl of stamens inserted on the thalamus and surrounding the pistil. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z The six stamens stand on close guard around the pistil, and insects forcing their way to the nectaries are well peppered with pollen. Ontario Teachers' Manuals: Nature Study The flowers expand, and a set of vessels pour into the cup or nectary a minute portion of honey. Mysteries of Bee-keeping Explained And your dry soul crumbles by dim degrees To final dust quite happily, it appears, While all the sweetness of her nectaries Can only stand within my heart like tears. The Hours of Fiammetta A Sonnet Sequence Anthers seated on the 15 teeth of the nectary. The Medicinal Plants of the Philippines Even the nectary which is adherent to the upper surface of the pedicel in the normal flower disappears—sometimes completely, at other tunes partially. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Thus every botanist considers petals, nectaries, stamens, pistils, germen as metamorphosed leaf. The Foundations of the Origin of Species Two Essays written in 1842 and 1844 The bee is small, the load of honey brought home by it is still less, and the quantity secreted in the nectary of each flower, yet more minute. Mysteries of Bee-keeping Explained This would tend to their respective perpetuation, and to the constant lengthening of nectaries and probosces. Contributions to the Theory of Natural Selection A Series of Essays Ovary within the nectary, 5-angled, 5 apartments each containing an almost spherical seed. The Medicinal Plants of the Philippines Smaller insects might creep into the nectary and sip without the intended fulfilment. My Studio Neighbors You rise with the sun, and your gossamer wing Bears you swiftly away where the heather-bells spring; Whence you come heavy laden with nectary spoil, For the sweet winter stores of your summer of toil. Featherland How the Birds lived at Greenlawn There were bees, too; and bee-birds humming from flower to flower, and robbing their rich nectaries. The Boy Hunters A nectary is found in many orders of plants and is especially common in the Orchids, but in this one case only is it more than a foot long. Contributions to the Theory of Natural Selection A Series of Essays Stamens 5, inserted on the nectary, and alternating with the lobes of the latter. The Medicinal Plants of the Philippines Its nectary tube is five inches in length, and as slender as a knitting-needle. My Studio Neighbors The sepals of its flowers are purple, and the leaves are evergreen; the petals are green and leaf-like, whilst the nectaries are large and tubular, often containing small flies. Herbal Simples Approved for Modern Uses of Cure Honey, is a fluid or semi-fluid substance, the materials of which are collected by the bees, from the nectaries at the base of the coroll� of flowers, where this vegetable production is secreted. A Description of the Bar-and-Frame-Hive With an Abstract of Wildman's Complete Guide for the Management of Bees Throughout the Year A species having a proboscis two or three inches longer could reach the nectar in the largest flowers of Angræcum sesquipedale, whose nectaries vary in length from ten to fourteen inches. Contributions to the Theory of Natural Selection A Series of Essays Anthers equal in number to the teeth of the nectary and inserted between them. The Medicinal Plants of the Philippines The evolution of the long nectary implies an adaptation to an insect's tongue of equal length. My Studio Neighbors The odour of Honey is due to a volatile oil associated with a yellow colouring matter melichroin, which is separated by the floral nectaries, and becomes bleached on exposure to the sunlight. Herbal Simples Approved for Modern Uses of Cure What a variety of treasures were spread out before me: larkspurs, from whose pointed nectaries I might weave "circles without end," varying the pattern of each by alternate proportions of blue, and pink, and white. Mrs Whittelsey's Magazine for Mothers and Daughters Volume 3 Not only the abnormal length of the nectary had to be considered; there was, besides, the fact that all its honey lay at the base, a foot or more from the orifice. About Orchids A Chat Above the nectaries is a 5-angled crown, the extremity of the receptacle; in each angle a black anther. The Medicinal Plants of the Philippines The opening to the nectary is seen just below the stigmatic surface, the nectary itself being nearly two inches in length. My Studio Neighbors And as I sank into a suaver dream The pleading bee-song's burthen sole did seem, "Hast ne'er a honey-drop of love for me In thy huge nectary?" Lippincott's Magazine of Popular Literature and Science October, 1877. Vol XX - No. 118 Besides the common species, the second is the cari, Solanum cari, which bears white flowers having a large central nectary like the narcissus. A General History and Collection of Voyages and Travels - Volume 05 Arranged in Systematic Order: Forming a Complete History of the Origin and Progress of Navigation, Discovery, and Commerce, by Sea and Land, from the Earliest Ages to the Present Time Long before his death a sphinx moth arrived from South Brazil which shows a proboscis between ten and eleven inches long—very nearly equal, therefore, to the task of probing the nectary of Angræcum sesquipidale. About Orchids A Chat Pistillate: calyx and corolla same as staminate; nectary, 5 glandules on the base of the ovary. The Medicinal Plants of the Philippines The nectary implies a welcome to a tongue two inches long, and will reward none other. My Studio Neighbors Some flowers have neither scent nor nectar, and yet attract insects by sham nectaries! Darwinism (1889) There, beneath an arch of spray, three dark-eyed maidens stood; garlanded with columbines, their nectaries nodding like jesters' bells; and robed in vestments blue. Mardi: and A Voyage Thither, Vol. II The nectaries are more elongated than the garden columbines, and form a sort of mural crown, surmounted with little balls at the tips. The Backwoods of Canada Being Letters From The Wife of an Emigrant Officer, Illustrative of the Domestic Economy of British America And as I sank into a dimmer dream The pleading bee's song-burthen sole did seem: "Hast ne'er a honey-drop of love for me In thy huge nectary?" The Poems of Sidney Lanier At E we see the moth with its tongue entering the nectary of a subsequent blossom. My Studio Neighbors Toward the two little gleams of light through apertures at the end of a passage beyond the nectary hairs he at length finds his way. Wild Flowers Worth Knowing By the multiplication of the petals and the exclusion of the nectaries, as in larkspur. 2d. The Botanic Garden. Part II. Containing the Loves of the Plants. a Poem. With Philosophical Notes. The two blossoms are connected at the nectary of each in a singular manner. The Backwoods of Canada Being Letters From The Wife of an Emigrant Officer, Illustrative of the Domestic Economy of British America Thus the immense length of the nectary of the Angraecum sesquipedale of Madagascar might, perhaps, have been completely explained by Mr. Wallace, if this important purpose had been taken into account.* The Naturalist in Nicaragua But he, too, has failed to note the equally remarkable palate of the ragged orchid, just described, both provisions having the same purpose, the insurance of an oblique approach to the nectary. My Studio Neighbors The unchanged insects will therefore be confined to the unchanged flowers, while the changed insects will be indifferent on the subject, as they will be able to reach the nectary in any case. Story of Creation as Told By Theology and By Science By the multiplication of the nectaries and exclusion of the petals; as in columbine. 3d. The Botanic Garden. Part II. Containing the Loves of the Plants. a Poem. With Philosophical Notes. She has to discover the honey and pollen that lurk in the labyrinths of the nectaries and in the most secret recesses of the anthers. The Life of the Bee Many flowers have contrivances for preventing useless insects from obtaining access to the nectaries. The Naturalist in Nicaragua If an orchid has a nectary one inch long, an insect's tongue of equivalent length is implied; a nectary six inches in length likewise implies a tongue six inches long. My Studio Neighbors The insect derives an advantage from its increased haustellum, but what advantage does the plant derive from its retiring nectary? Story of Creation as Told By Theology and By Science The double flowers become monsters by the multiplication of their petals or nectaries. The Botanic Garden. Part II. Containing the Loves of the Plants. a Poem. With Philosophical Notes. Mr. Belt says that he watched many flowers during a whole season in North Wales, and "only once saw a small bee reach the nectary, though many were seen trying in vain to do so." Effects of Cross and Self Fertilisation in the Vegetable Kingdom Provision in some flowers to prevent insects, not adapted for carrying the pollen, from obtaining access to the nectaries. The Naturalist in Nicaragua The floral adaptation is such that the moth must force its large head far into the opening of the blossom in order to reach the sweets in the long nectary. My Studio Neighbors The rule consequently is, that when the pistils and stamens are curved or bent, the stigma and anthers are thus brought into the pathway leading to the nectary. The Different Forms of Flowers on Plants of the Same Species Nature has in many flowers used a wonderful apparatus to guard the nectary, or honey-gland, from insects. The Botanic Garden. Part II. Containing the Loves of the Plants. a Poem. With Philosophical Notes. The pollen thus collected lies close beneath the stigma, but can seldom gain access into its cavity, except by the aid of insects, which pass their proboscides down this passage into the nectary. Effects of Cross and Self Fertilisation in the Vegetable Kingdom Guided by the white streaks, or pathfinders, they crawl into the deep tube and sip through one of the five narrow passages leading to the nectary. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The Angræcum also affords in this long pendent nectary a most lucid illustration of the present workings of natural selection. My Studio Neighbors I can add nothing of importance to Von Mohl's description, excepting that one of the rudimentary petals shows a vestige of a nectary, as Mr. Bennett likewise found to be the case with I. fulva. The Different Forms of Flowers on Plants of the Same Species In Aconitum, monkshood, the nectaries stand upright like two horns covered with a hood, which abounds with such acrid matter that no insects penetrate it. The Botanic Garden. Part II. Containing the Loves of the Plants. a Poem. With Philosophical Notes. Nevertheless, as the nectary contains much nectar, especially in the evening, I felt convinced that they were visited, probably by moths. Effects of Cross and Self Fertilisation in the Vegetable Kingdom Dr. Prior says the flower was given its name because "of the resemblance of the nectaries to the heads of pigeons in a ring around a dish - a favorite device of ancient artists." Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors Let us suppose a flower whose nectary chances to be only six inches in length. My Studio Neighbors I watched Bombus hortorum for some time, and whenever it came to a flower which did not stand in a convenient position to be sucked, it bit a hole through the spur-like nectary. The Different Forms of Flowers on Plants of the Same Species In Helleborus, hellebore, the many nectaries are placed in a circle, like little pitchers, and add much to the beauty of the flower. The Botanic Garden. Part II. Containing the Loves of the Plants. a Poem. With Philosophical Notes. Not only do the bright colours of flowers serve to attract insects, but dark-coloured streaks and marks are often present, which Sprengel long ago maintained served as guides to the nectary. Effects of Cross and Self Fertilisation in the Vegetable Kingdom Calyx inferior; corolla deeply 5-parted, the oblong segments turned back; a 5-parted, erect crown of hooded nectaries between them and the stamens, each shorter than the incurved horn within. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors None of its pollen would be carried to other stigmas, nor would it set a seed to perpetuate by inheritance its shorter nectary. My Studio Neighbors In several closely allied genera, as in Dielytra, etc., there are two perfect nectaries, the pistil is straight, and the hood slips off on either side, according as the bee sucks either nectary. The Variation of Animals and Plants under Domestication — Volume 2 The importance of the nectary in the economy of vegetation is explained at large in the notes on part the first. The Botanic Garden. Part II. Containing the Loves of the Plants. a Poem. With Philosophical Notes. Sprengel's notion of the use of these marks as guides appeared to me for a long time fanciful; for insects, without such aid, readily discover and bite holes through the nectary from the outside. Effects of Cross and Self Fertilisation in the Vegetable Kingdom Guided by the speckles to the nectaries at the base of the flower, they must either cling to the stamens and style while they suck, or fall out. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors Again, let us suppose the variation of an extra long nectary, and the writer recently saw a number of these orchids with nectaries thirteen inches in length. My Studio Neighbors The nectary within the base of the shorter stamens seems to cause the end sepals apparently, but not really, to arise beneath the lateral sepals. More Letters of Charles Darwin — Volume 2 After impregnation the flower undergoes a remarkable change, the nectaries drop off, but the white corol remains, and gradually becomes quite green. The Botanic Garden. Part II. Containing the Loves of the Plants. a Poem. With Philosophical Notes. The following case affords, I think, the best evidence that these marks have really been developed in correlation with the nectary. Effects of Cross and Self Fertilisation in the Vegetable Kingdom A prominent tubercle, or palate, growing upward from the lip, almost conceals the entrance to the nectary. and makes a side approach necessary. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors Its nectaries are stored with sweets, and I fancy each opening bud keenly alert with conscious solicitude for its affinity. My Studio Neighbors Hence even the thin nectary is essentially, I infer, tripartite; hence its tendency to bifurcation at its top. More Letters of Charles Darwin — Volume 2 When the colour is absent from only one of the two upper petals, the nectary is not quite aborted but is much shortened. The Origin of Species by means of Natural Selection, 6th Edition When the nectary is only partially aborted, only one of the upper petals loses its mark. Effects of Cross and Self Fertilisation in the Vegetable Kingdom The veins on the petals serve as pathfinders to the nectary for the bee, and the beard as footholds, while she probes the inverted blossoms. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors A bee alights upon the flower—the object of its visit being, of course, the sweets located in the five horn-shaped nectaries. My Studio Neighbors She had a passion for achievement; she attempted the most difficult things, close racemes, the tiniest corollas, heaths, nectaries of the most variegated hues. Honorine Coming to feast with his tongue dusted from anthers nearest the nectary, he pollenizes the large stigmas of a short-styled blossom without touching its tall anthers. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors So is the position which the stamens and pistils occupy, either permanently or at the proper period through their own movements; for when mature they invariably stand in the pathway leading to the nectary. Effects of Cross and Self Fertilisation in the Vegetable Kingdom The spur of the blossom, the nectary, "implies a welcome to a tongue two inches long, and will reward none other," says William Hamilton Gibson. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The nectary now drained of its sweets, the moth creeps or flutters to a second blossom, and its pollen-dusted body thus coming in contact with its stigma, cross-fertilization is accomplished. My Studio Neighbors Toward the two little gleams of light through apertures at the end of a passage beyond the nectary hairs, he at length finds his way. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The yellow palate, which partially guards the entrance to the nectary from pilferers, of course serves also as a pathfinder to the long-tongued bees. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors They are thus stimulated to work quickly by rivalry, and, what is much more important, they find a large proportion of the flowers, as suggested by my son, with their nectaries sucked dry. Effects of Cross and Self Fertilisation in the Vegetable Kingdom Butterflies, attracted by the bright color of the flower - and to them color is the most catchy of advertisements - are guided by a few dark lines on the petals to the nectary. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors The nectary is about the length of a bumblebee's tongue, and is, moreover, so amply expanded at the throat below the stigma as to comfortably admit its wedge-shaped head. My Studio Neighbors From the number of butterflies seen hovering about this fringeless orchis and its more attractive kin, it is small wonder their nectaries are soon exhausted and they are accused of being gay deceivers. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors |
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