. Botany for high schools. Botany. LIVERWORTS woris make up a class of low, flowerless plants standing above the slgx and fungi. They all possess chlorophyll. In many of them the plant body is flattened and leaf-like, more or less rounded in some, or strap-shaped in others, and lobed or forked in various ways. These lobed forms suggested the name liverwort which has been adopted as the name of the class, with the technical name, Class HepaticcB. This plant body is a thallus, sl word applied to those low plant forms which are not divided into a true stem, leaf and root.* They are attached to th
. Botany for high schools. Botany. LIVERWORTS woris make up a class of low, flowerless plants standing above the slgx and fungi. They all possess chlorophyll. In many of them the plant body is flattened and leaf-like, more or less rounded in some, or strap-shaped in others, and lobed or forked in various ways. These lobed forms suggested the name liverwort which has been adopted as the name of the class, with the technical name, Class HepaticcB. This plant body is a thallus, sl word applied to those low plant forms which are not divided into a true stem, leaf and root.* They are attached to the ground, to. Fig. 279. Section of thallus of Marchantia. A, through the middle portion; B, through the marginal portion; p, colorless layer; chl, chlorophyll layer; sp, stomate; h, rhizoids; b, leaf-like outgrowths on under side (Goebel). tree trunks, or rocks by slender thread-like outgrowths called rhizoids J through which much of the water and mineral foods are absorbed. Nearly all of the liverworts grow in damp situations, or float on the water. The male and female organs are a sperm case (antheridiiim) with motile sperms, and an egg case (arche- gonium) with an egg. The egg case of the liverworts is a more * The word thallophyte, however, technically applies only to the algse and fungi, which are the thallus plants par Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Atkinson, George Francis, 1854-1918. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
