. Botany for high schools. Botany. LIVERWORTS 309 476. The capsule (sporogonium).—As a result of fertiliza- tion the egg does not develop the marchantia plant again, but develops into a new structure very different from the thallus which bears the sexual organs. This is the capsule bearer. Fig. 285. Marchantia polymorpha, female plants bearing archegoniophores. (sporogonium), which is peculiar to all the liverworts and mosses as well. In Marchantia, as in most liverworts and mosses, it is a stalked capsule. The capsule contains the spores, and in Marchantia and many other liverworts the spores
. Botany for high schools. Botany. LIVERWORTS 309 476. The capsule (sporogonium).—As a result of fertiliza- tion the egg does not develop the marchantia plant again, but develops into a new structure very different from the thallus which bears the sexual organs. This is the capsule bearer. Fig. 285. Marchantia polymorpha, female plants bearing archegoniophores. (sporogonium), which is peculiar to all the liverworts and mosses as well. In Marchantia, as in most liverworts and mosses, it is a stalked capsule. The capsule contains the spores, and in Marchantia and many other liverworts the spores are mixed with sterile cells in the form of long, slender, spirally marked cells called elaters. These elaters are very sensitive to changes in the humidity of the air, twisting and coiling in various ways with slight changes in the humidity. This assists in pushing the spores out of the capsule after it opens at the apex. Since the. 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
