. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. CHARA. 205 (M)nstituent cells, each of which then liberates an anthero- zoid. The antherozoids make tlieir way down the necks of the carpogonia and fertilize the germ-cells. The spiral cells then harden, and form a firm coat for the spore within. As the plant decays in the autnmn, these seed- like sporocarps^ as they are now called, drop off and fall to the bottom of the water, where they eventu
. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Plantes; Botanique. CHARA. 205 (M)nstituent cells, each of which then liberates an anthero- zoid. The antherozoids make tlieir way down the necks of the carpogonia and fertilize the germ-cells. The spiral cells then harden, and form a firm coat for the spore within. As the plant decays in the autnmn, these seed- like sporocarps^ as they are now called, drop off and fall to the bottom of the water, where they eventually ger- minate. On germination, they first produce a simple form to which the name iwo-rmhryo has been given, ani from whicli arises the plant- body which bears the antheridia and carpogonia. There is, therefore, displayed in this case an alternation of genera- tions. 355. Chara belongs to a group of Fig. 255. plants known as AlgSB. They grow either in the water or upon damp surfaces. They differ from the Fungi principally in developing chlorophyll, so that they are able to assimilate. In colour, the Algee are often green, but in other cases the chlorophyll is obscured by the presence of other colours, such as brown and red. In the lowest forms of both AlgiB and Fungi reproduction takes place by simple division of the cells. In higher forms the entire contents of two similar adjacent cells coalesoer to form a new one, from which the new l)lant springs. This is the process of conjugation (284). In still higher forms, as in Chara, reproduction takes place by fertilization. Ficf. 255.—Highly magnified view of part of the fertile thallua of Chara. (Thoiuti.). 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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