| 单词 | liverwort |
| 例句 | “So it’s even called ‘liverwort,’ sometimes,” he said, “that pretty flower! But it’s got more names than you can shake a stick at. Some say it’s a ‘herb-trinity’ because of the three leaves. Miracles on Maple Hill 1956-08-01T00:00:00Z In spring, lichens, liverworts, ferns, and mosses, those primordial Act I scene-stealers, return to the stage. “Life Story,” Virginia Lee Burton’s Picture Book for the Ages 2015-10-08T04:00:00Z "To do so we made use of two systems: gemmae of the liverwort Marchantia polymorpha, and the early-stage first true leaf of Arabidopsis thaliana." How new plant cell walls change their mechanical properties after cell division 2023-10-02T04:00:00Z He thought at first that it might be a liverwort, a kind of organism similar to, but separate from, mosses. The World’s Oldest Moss Outlived the Dinosaurs, but It May Not Survive Climate Change 2023-08-10T04:00:00Z Collectively known as bryophytes, the three main groups include the liverworts, the hornworts, and the mosses. Fundamentals of Biology 2015-01-01T00:00:00Z There are three main groups: the liverworts, the hornworts, and the mosses. Concepts of Biology 2013-04-25T00:00:00Z The research was undertaken by students and staff at the Field Museum in Chicago, which invited museumgoers to participate in a community science project that measured the leaves of liverworts. Community scientists — even children — produce usable data for researchers 2022-07-02T04:00:00Z She was able to identify 366 species of vascular plants, which doesn’t include mosses and liverworts, also found in wetlands. North Carolina wetlands area could receive state protection 2020-01-20T05:00:00Z It found 20-50% of terrestrial molluscs, shrubs and bryophytes, such as moss and liverworts, are threatened with extinction due to a loss of wild areas, expanded agriculture and climate change. More than half of native European trees face extinction, warns study 2019-09-27T04:00:00Z Once mosses and liverworts are established, they provide food and shelter for other species. Fundamentals of Biology 2015-01-01T00:00:00Z In another, a lacewing larva looks for all the world like a liverwort plant. Fossils in Burmese amber offer an exquisite view of dinosaur times—and an ethical minefield 2019-05-23T04:00:00Z He called it perrottetinene, or PET, and it was later found in two other species of liverwort. Scientists say they've found a THC-like substance in a surprising plant: liverwort - Los Angeles Times 2018-10-26T04:00:00Z "Early plants such as mosses and liverworts, which dominated the land 500–400 million years ago, produce a weaker VRE, approximately half as strong as that of modern vegetation," the abstract says. Earth's history could be used to spot plant life on alien worlds 2018-10-01T04:00:00Z If you look at modern plants which branched off even lower down in the plant evolutionary tree, such as mosses and liverworts, the situation is reversed. Spore heroes: unlocking the life-cycle secrets of the earliest land plants 2018-05-24T04:00:00Z The illustration shows a variety of liverworts, which all share a branched, leafy structure. Fundamentals of Biology 2015-01-01T00:00:00Z Among the groups most at risk are mosses, liverworts and freshwater fish. Top UN panel paints bleak picture of world's ecosystems 2018-03-26T04:00:00Z This species of liverwort only grows in Japan, New Zealand and Costa Rica, and Gertsch acknowledged that cultivating it may “may be challenging” because it reproduces without seeds. Scientists say they've found a THC-like substance in a surprising plant: liverwort - Los Angeles Times 2018-10-26T04:00:00Z A bottle of patent medicine, still half-full of “extract of liverwort,” sold by Shakers in the early 19th century to support their fledgling religious community. The Smithsonian now has its first religion curator since the 1890s 2016-10-28T04:00:00Z In liverworts like Marchantia, which lives in most soggy places worldwide, the gametophyte is the dominant phase – the thing you would think of as the plant. Spore heroes: unlocking the life-cycle secrets of the earliest land plants 2018-05-24T04:00:00Z Openings that allow the movement of gases may be observed in liverworts. Fundamentals of Biology 2015-01-01T00:00:00Z Ecologists hope the voles being released at Malham Tarn will improve the local ecosystem, saying their burrowing should provide the space for rare species of moss and liverwort to thrive. Water voles: National Trust releasing 100 in Yorkshire Dales - BBC News 2016-08-18T04:00:00Z He added that the pharmaceutical promise of PET may raise the profile of bryophytes, the unsung group of plants that includes liverworts and mosses. Scientists say they've found a THC-like substance in a surprising plant: liverwort - Los Angeles Times 2018-10-26T04:00:00Z It lacks roots and looks like mosses and liverworts. Florida fern may be listed as endangered species 2014-10-09T04:00:00Z Fragments from mosses, algae, lichens and liverworts were trapped in the feathers. Plant Spores Hitch Long-Distance Feather Rides 2014-06-18T04:00:00Z Superficially, their bodies resemble liverworts, named for their vaguely liver-shaped, lobed bodies. Ferns Stole Rare Gene From Unlikely Source 2014-05-06T13:45:46Z These creatures are often found on land living in the thin film of water on water-absorbing surfaces like mosses, liverworts, lichens, algae, forest litter, and, oddly enough, roof shingles. Wonderful Things: The Universe Between the Sand Grains 2013-09-16T13:16:25.110Z The adults tend to emerge in winter and like feeding on and generally hanging out with mosses and liverworts, although as Russell pointed out in the first video, doesn’t seem to mind going on hopabouts. How the Fleas' Next of Kin Ended up Living on a Liverwort in Alaska 2013-07-27T01:45:00.760Z Some, like “liverwort,” “bloodroot,” “rattlesnake plantain” or even “nipplewort,” leave little to the imagination. City Room: Unexpected Décor 2013-06-15T01:43:05Z However, mosses, along with the even more obscure liverworts and hornworts, are unlike most land plants. Mosses Make Two Different Plants From the Same Genome, and a Single Gene Can Make the Difference 2013-05-12T19:45:00.233Z A hornwort photographed from overhead reveals its liverwort and lichen-like appearance. Ferns Stole Rare Gene From Unlikely Source 2014-05-06T13:45:46Z And here’s a link to a detailed diagram of a sperm cell from a liverwort, a close relative of mosses. How Mosses Have Sex in Spite of Their Swimming-Challenged Sperm 2012-07-28T11:45:00.203Z I am glad to learn include "the mosses and the liverworts." Hints to Pilgrims 2011-08-18T02:00:23.727Z They twisted in and out through the laurel and rhododendrons, between bald rocks, mighty and pigmy, and over crumbling logs coated with liverwort. The Red Debt Echoes from Kentucky 2011-05-08T02:00:04.810Z Such a line proceeds from the green filamentous algæ through the liverworts to the vascular plants. A Mechanico-Physiological Theory of Organic Evolution Like mosses and liverworts, they belong to a group of land plants that evolved early in Earth’s history. Ferns Stole Rare Gene From Unlikely Source 2014-05-06T13:45:46Z The bird’s nest fungi and moss-relatives called liverworts both have similar structures for dispersing packets of their spores or tissue. How Mosses Have Sex in Spite of Their Swimming-Challenged Sperm 2012-07-28T11:45:00.203Z And upwards of twelve hundred wild plants have been enumerated as belonging to Touraine, besides the cryptogamia, such as the mosses, ferns, liverworts, and mushrooms. Memoranda on Tours and Touraine Including remarks on the climate with a sketch of the Botany And Geology of the Province also on the Wines and Mineral Waters of France Two vases of India china stood on the mantel, filled with spring flowers, crowfoot, anemones, and liverwort, with drooping bells of the twin-flower. The Pearl of Orr's Island A Story of the Coast of Maine The salamanders were maintained in a seven-gallon aquarium, the floor of which was covered with soil, mosses, liverworts, certain flowering plants, and pieces of rotten fir log. Natural History of the Salamander, Aneides hardii Two ounces of alcohol;One and a half ounces of glycerine;One ounce of liverwort;Three hundred and twenty grains of saltpetre;Forty drops of wintergreen. The Ladies Book of Useful Information Compiled from many sources The traders buy large quantities of liverwort from the Cherokees, who may thus have learned to esteem it more highly than they otherwise would. The Sacred Formulas of the Cherokees Seventh Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1885-1886, Government Printing Office, Washington, 1891, pages 301-398 Lungwort, whose leaves bear a fancied resem144blance to the surface of the lungs, was considered good for pulmonary complaints, and liverwort, having a leaf like the liver, cured liver diseases. Three Thousand Years of Mental Healing The mosses, liverworts, and lichens take possession of the trees and cover them with a unique decoration. The Mountain that was 'God' Being a Little Book About the Great Peak Which the Indians Named 'Tacoma' but Which is Officially Called 'Rainier' The sexual organs are much like those of the liverworts and are borne at the apex of the stems. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Steep the liverwort in a quart of water down to half the quantity, then throw in the other ingredients while hot. The Ladies Book of Useful Information Compiled from many sources BRYOPHYTA, the botanical name of the second great subdivision of the vegetable kingdom, which includes the mosses and liverworts. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" I also fancy the liverwort, which surrounds them, rather helps them than otherwise. Hardy Perennials and Old Fashioned Flowers Describing the Most Desirable Plants, for Borders, Rockeries, and Shrubberies. It is a plant somewhere between the mosses and the lichens in its character it is one of the liverworts, and they are some of the first plants to go in advance of superior vegetation. Melbourne House As in the liverworts the young embryo is completely covered by the growing archegonium wall. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses In this region the liverwort blooms fragrantly beside the snow-bank in early spring, and here the arbutus exists as in New England. A Man and a Woman Even the distinction between liverworts and mosses is not clearly made, not only the former but other small plants of higher groups being popularly called mosses. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" There are also some ferns, mosses, fungi, and liverworts. COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 It is a plant somewhere between the mosses and the lichens in its character—it is one of the liverworts, and they are some of the first plants to go in advance of superior vegetation. Melbourne House, Volume 2 The capsule splits into four valves, something like a liverwort. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Take, for instance, the case of the liverworts. Scientific American Supplement, No. 531, March 6, 1886 Each antheridium or archegonium arises from a single cell, and while the mature structure is similar in the two groups, the development presents differences in liverworts and mosses. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The earliest wild flowers in the woods and fields, spicy arbutus, blue liverwort, frail anemone, and the pretty white blossoms of the bloodroot. Complete Prose Works Specimen Days and Collect, November Boughs and Goodbye My Fancy Family Physician," published in 1883, says, for the bite of a mad dog: "Take ash-colored ground liverwort, cleaned, dried, and powdered, half an ounce; of black pepper, powdered, a quarter of an ounce. Remarks Removing one of these carefully, we find on the lower side numerous fine hairs like those on the lower surface of the liverworts, which fasten it firmly to the ground. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses The gemma is found most frequently in the liverworts and mosses, and is highly characteristic of these plants, in which indeed vegetative reproduction maybe said to reach its fullest and most varied extent. Scientific American Supplement, No. 531, March 6, 1886 In liverworts this preliminary phase of the sexual generation is as a rule ill-marked or absent, and the plant may be said to develop directly from the spore. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Creeping liverworts are here also in abundance, and several rare species of fungi, exceedingly small, and frail, and delicate, as if made only for beauty. The Mountains of California So they sped on, now sinking deep in a mass of sodden liverwort, glistening in the most exquisite of green, again treading down a tangle of luscious, pale-yellow "bake-apples." Annette, the Metis Spy The smaller branches grow out sideways so that the whole branch appears flattened, reminding one of the habit of the higher liverworts. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Spores of mosses and liverworts, of vascular cryptogams, and pollen cells of phanerogams, which are the analogue of the spores. Scientific American Supplement, No. 531, March 6, 1886 Since these series of forms differ considerably among themselves, it is difficult to express in a definition the distinction between a liverwort and a moss which is readily made in practice. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The general brown and purple of the ground, and the dead vegetation of the preceding year, give place to the green of mosses and liverworts and myriads of young leaves. The Mountains of California The savage uttered a terrible cry, flung up his arms, and fell without a move among the liverwort. Annette, the Metis Spy G, archegonial branch of common liverwort, natural size. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Mousie came running to us, holding in her hand, which trembled from excitement, a little bunch of liverworts and anemones. Driven Back to Eden The range of form and structure of both generations in the liverworts is so great that no one form can be taken as a satisfactory type. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" In most liverworts, on the other hand, water is absorbed directly by the whole general surface, and the rhizoids are of subordinate importance. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Fungal hyphae occur in the rhizoids and in the cells of the lower region of the thallus of many liverworts, as in the endotrophic mycorhiza of higher plants. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" H, two young buds from the common liverwort, × 150. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Sphaerocarpus, which occurs rarely in stubble fields, is in many respects one of the simplest of the liverworts. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" While the general course of the life-history of all liverworts resembles that of Pellia, the three great groups into which they are divided differ from one another in the characters of both generations. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The plants of this genus, none of the species of which are British, grow in shallow water rooted in the mud, and are unlike all other liverworts in appearance. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" This interesting liverwort produces two kinds of gemmae, and in the localities in which it grows is largely reproduced by their means. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The spore fruit is more highly developed than in the liverworts, but never contains elaters. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Treubia, which grows on rotting wood in the mountain forests of Java, is similarly differentiated into stem and leaf, and is the largest liverwort known, reaching a length of thirty centimetres. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" In none of the liverworts does the sporogonium develop by means of an apical cell, as is the rule in mosses. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The great majority of existing liverworts belong to this group, the general plan of construction of which is throughout very similar. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Though the number of species of mosses is far greater than of liverworts, the group offers much less diversity of form. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" They closely resemble those of the liverworts, but the neck is longer and twisted and the base more massive. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses The latter, in contrast to the rhizoids of liverworts, are composed of rows of elongated cells and are branched. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" With hardly an exception the liverworts are dorsiventral, and usually one side is turned to the substratum and the other exposed to the light. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" The structure of the stem though simple is more complicated than in any liverwort. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Their general similarity to the mature antheridia and archegonia of liverworts and the main difference in their development have been referred to. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" They finally become entirely separated and each one gives rise to four spores which closely resemble those of the liverworts but are smaller. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses |
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