. Elementary botany . Fig. 116. Coleochaete soluta ; at left branch bearing oogonium (oog); antheridia (ant); egg in oogonium and surrounded by enveloping threads ; at center three antheridia open, and one spermatozoid ; at right sporocarp, mature egg inside sporocarp wall. cell elongates into a slender tube which opens at the end to form a channel through which the spermatozoid may pass down to the egg. The egg is • formed of the contents of the cell (fig. 116). Several oogonia are formed on one plant, and in such a 183? plant as C. scutata they are formed in a ring near the margin of the dis
. Elementary botany . Fig. 116. Coleochaete soluta ; at left branch bearing oogonium (oog); antheridia (ant); egg in oogonium and surrounded by enveloping threads ; at center three antheridia open, and one spermatozoid ; at right sporocarp, mature egg inside sporocarp wall. cell elongates into a slender tube which opens at the end to form a channel through which the spermatozoid may pass down to the egg. The egg is • formed of the contents of the cell (fig. 116). Several oogonia are formed on one plant, and in such a 183? plant as C. scutata they are formed in a ring near the margin of the disk. 262. In C. scutata certain of the cells of the plant divide into four smaller cells, and each one of these becomes an antheri- lium. In C. soluta the an-
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany
