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单词 dicotyledonous
例句 dicotyledonous
Pith, pith, n. the marrow or soft substance in the centre of the stems of dicotyledonous plants: force or energy: importance: condensed substance: quintessence.—n. Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) 2012-01-30T03:00:13.887Z
The chief home of the Coniferales is in the northern hemisphere, where certain species occasionally extend into the Arctic circle and penetrate beyond the northern limit of dicotyledonous trees. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z
Suppose there were no way to observe the development of two dicotyledonous plants from their seeds—the apple tree and the bean. A General Introduction to Psychoanalysis 2011-12-06T03:00:21.763Z
Still, the presence of dicotyledonous leaves, such as Magnolia alternans, in the Atanakerdluk strata, proves their close alliance with the Dakota series of the United States. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 5 "Greek Law" to "Ground-Squirrel" 2011-12-05T03:00:51.527Z
The bast tissues of dicotyledonous annuals furnish such staple materials as flax, hemp, rhea or ramie and jute. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 3 "Fenton, Edward" to "Finistere" 2011-03-14T03:01:00.580Z
The dicotyledons are of more complex structure, and somewhat more perfect organization, than the monocotyledons: and some dicotyledonous families, such as the Composit�, are rather more complex in their organization than the rest. A System of Logic: Ratiocinative and Inductive 7th Edition, Vol. II 2011-03-01T03:00:40.557Z
Grasses and creeping dicotyledonous plants are fully matured; and a rich pasturage affords, during the warm season, abundant nourishment to herbivorous animals. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History
And, here again, there is no vestige of intermediate species, linking dicotyledonous plants with other types. The Old Riddle and the Newest Answer
And the polycotyledonous is only a variation of the dicotyledonous type,—a difference in the number of leaves in the whorl; for a pair is a whorl reduced to two members. The Elements of Botany For Beginners and For Schools
They are Gymnogens as to ovules, and neither Exogens nor Endogens in the wood of their short, simple, or branched trunks, and they have dicotyledonous seeds. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology
CARYOPHYLLACEAE, a botanical order of dicotyledonous plants, containing about 60 genera with 1300 species, and widely distributed, especially in temperate, alpine and arctic regions. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4 "Carnegie Andrew" to "Casus Belli"
But among the dicotyledonous vegetables there is none that merit the attention of naturalists as the creeping ligneous plants known as so much lianes. Movement of the International Literary Exchanges, between France and North America from January 1845 to May, 1846 With Instructions for Collecting, Preparing, and Forwarding Objects of Natural History Written by The Professors Administrators of The Museum Of Natural History At Paris. And Instructions Relative to Anthropology and Zoology
With these there occur a few disputed leaves, which I must persist in regarding as dicotyledonous. The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
A Bean-stalk and the stem of any common shrub or tree represent the second; and to it belong all plants with dicotyledonous or polycotyledonous embryo. The Elements of Botany For Beginners and For Schools
The dicotyledons are of more complex structure, and somewhat more perfect organization, than the monocotyledons; and some dicotyledonous families, such as the Compositæ, are rather more complex in their organization than the rest. A System Of Logic, Ratiocinative And Inductive
Professor Huxley is credited with the assertion that the primrose is "a corollifloral dicotyledonous exogen, with a monopetalous corolla and a central placenta." English as She is Wrote Showing Curious Ways in which the English Language may be made to Convey Ideas or obscure them.
Starch, or fecula, occurs largely in dicotyledonous seeds, peas, &c., and still more abundantly in certain monocotyledonous seeds, such as wheat and barley. The Stock-Feeder's Manual the chemistry of food in relation to the breeding and feeding of live stock
On submitting them in thin slices to the microscope, they were found to exhibit the peculiar dicotyledonous structure as strongly as the oak or chestnut. The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
In Palæozoic strata the entire want of plants of the most complex organisation is very striking, for not a single dicotyledonous angiosperm has yet been found, and only one undoubted monocotyledon. The World's Greatest Books — Volume 15 — Science
Such bundles as these are called closed vascular bundles to distinguish them from the dicotyledonous type of vascular bundles which are called open vascular bundles on account of the existence of the cambium. A Handbook of Some South Indian Grasses
The wood, upon a microscopical examination, is shown to be that of some dicotyledonous tree of a very loose and light texture. Archeological Expedition to Arizona in 1895 Seventeenth Annual Report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution, 1895-1896, Government Printing Office, Washington, 1898, pages 519-744
It seemed to me a strange spectacle,—a forest of monocotyledonous trees with a dicotyledonous undergrowth; the inferior plants thus towering above and sheltering the superior ones. The Atlantic Monthly, Volume 18, No. 105, July 1866
In the great Secondary division, the true dicotyledonous plants first appear; but, so far as is yet known, no dicotyledonous wood. The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
The speaker's purpose was to exhibit the development of the common forms of branch, in dicotyledonous trees, from the fixed type of the annual shoot. On the Old Road, Vol. 2 (of 2) A Collection of Miscellaneous Essays and Articles on Art and Literature
Fifty feet within a mine, and in the undisturbed rock which forms its roof, the doctor found fragments of dicotyledonous trees with the bark on, undecomposed, uncharred, and fibrous. The Andes and the Amazon Across the Continent of South America
"Yes, it sounds funny," said father; "but, you see, the birch tree is dicotyledonous, and so are many weeds, and the dicotyledons look so much alike at first." Stories to Tell Children Fifty-Four Stories With Some Suggestions For Telling
Under the dicotyledonous groups, there are no plants with simplicity of floral elements. Scientific American Supplement, No. 623, December 10, 1887
On the other hand, the dicotyledonous herbs and trees, previously so inconspicuous in creation, are largely developed. The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
The names proposed in the pasigraphico-geognostic plan were borrowed from De Candolle's nomenclature, in which 'endogenous' is synonymous with monocotyledonous, and 'exogenous' with dicotyledonous plants. COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1
"Yes, it sounds funny," said father; "but you see, the birch tree is dicotyledonous, and so are many weeds, and the dicotyledons look much alike at first." Stories to Tell to Children
I found this dicotyledonous petrified wood only at the surface of the soil and not inclosed in the sandstone of the Llanos. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3
All these plants are grouped under three main divisions: apetalous, monocotyledonous, and dicotyledonous; and these main divisions are further subdivided. Scientific American Supplement, No. 623, December 10, 1887
But then we find that labiates and their allies among the dicotyledonous plants, and orchids among the monocotyledonous ones are especially subjected to this alteration. Species and Varieties, Their Origin by Mutation
The dicotyledonous stems found in lignite are occasionally distinguished by colossal size and great age. COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1
The soft spongy substance in the center of the stems of many plants and trees, especially those of the dicotyledonous or exogenous classes. The first New Testament printed in English
Within the tropics, the strength and luxury of vegetation give such a development to plants, that the smallest of the dicotyledonous family become shrubs. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1
Lastly, the wide distribution in the dicotyledonous series of plants with cotyledons which sleep. The Power of Movement in Plants
Seed-leaves show many deviations from the ordinary shape, especially in dicotyledonous plants. Species and Varieties, Their Origin by Mutation
In Bohemia, the rich veins of silver of Joachimsthal cut through basalt containing olivine, which overlies tertiary lignite, in which are leaves of dicotyledonous trees. The Student's Elements of Geology
Of ordinary dicotyledonous leaves, all those which are dragged into burrows are not gnawed. The formation of vegetable mould through the action of worms, with observations on their habits
We should then have to regard the Monocotyledons as a side-line, diverging probably at a very early stage from the main dicotyledonous stock, a view which many botanists have maintained, of late, on other grounds. Darwin and Modern Science
Another bed is full of the large rhizomes of ferns, while two others are rich in dicotyledonous leaves. The Student's Elements of Geology
In some of the close and white compact clays of this locality, there are not only dicotyledonous leaves, but numerous fronds of ferns allied to Gleichenia which are well preserved with their fruit. The Student's Elements of Geology
The only phaenogamous plants were constitute any feature in the coal are the coniferae; monocotyledonous angiosperms appear to have been very rare, and the dicotyledonous, with one or two doubtful exceptions, were wanting. The Student's Elements of Geology
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