. Botany for high schools. Botany. MOSSES or in the end of a short branch in some species. The sexual organs are sperm and egg cases (antheridia and archegonia). They are borne usually in different groups on the end of the stem or a short branch, either on the same plant (monoecious, or homothallic) or on different plants (dioecious, or heterothallic).. Fig. 293. Pigeon wheat mass (Polytrichum) in fruit. 484. The hairy-cap moss (Polytrichum).—The hairy-cap moss, or as it is sometimes called the pigeon wheat" moss, is an excellent one for study because of its common occurrence and wide dis
. Botany for high schools. Botany. MOSSES or in the end of a short branch in some species. The sexual organs are sperm and egg cases (antheridia and archegonia). They are borne usually in different groups on the end of the stem or a short branch, either on the same plant (monoecious, or homothallic) or on different plants (dioecious, or heterothallic).. Fig. 293. Pigeon wheat mass (Polytrichum) in fruit. 484. The hairy-cap moss (Polytrichum).—The hairy-cap moss, or as it is sometimes called the pigeon wheat" moss, is an excellent one for study because of its common occurrence and wide distribution, its large size, and the striking diff'erence between the male and female plants. It grows usually in mod- erately moist situations or in swampy ground. The plants form dense tufts or an extensive turf, the male and female plants usually grouped by themselves. The leaves are quite narrowly pointed and rather rigid. The male plants are shorter than the female plants, and at the end of the stem the leaves are crowded into a spreading rosette, in the center of which the sperm cases are crowded. In the female plants the terminal leaves are rather. 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
