Nature and development of plants . Fig. .199. Fig. 200. Fig. 199. Section of a young sporophyte of Anthoceros emerging fromthe involucre-like outgrowth of the thallus—sp, dome-shaped spore form-ing layer of cells; ch, chlorenchyme with stomata; b, foot or absorhingregion; c, region of growth. At right surface view of stoma. Fig. 200. A common moss, Funaria: A, two plants with root-like rhi-zoids at base and radially arranged leaves. Rising above the leaves arethe stalks or setae and capsules of two sporophytes. B, magnified view ofa plant, showing the early appearance of the sporophyte as a de
Nature and development of plants . Fig. .199. Fig. 200. Fig. 199. Section of a young sporophyte of Anthoceros emerging fromthe involucre-like outgrowth of the thallus—sp, dome-shaped spore form-ing layer of cells; ch, chlorenchyme with stomata; b, foot or absorhingregion; c, region of growth. At right surface view of stoma. Fig. 200. A common moss, Funaria: A, two plants with root-like rhi-zoids at base and radially arranged leaves. Rising above the leaves arethe stalks or setae and capsules of two sporophytes. B, magnified view ofa plant, showing the early appearance of the sporophyte as a delicate stalkStill covered by the enlarging archegonium or calyptra. C, a plant bearingantheridia in a rosette of leaves at apex of stem. D, enlarged view of theupper portion of the sporophyte, showing the twisting of the stalk thatassists in sifting the spores through the fringe of teeth, peristome, thatencircle the mouth of the capsule. manner of growth occurring in the mosses. As the sporophytedevelops, the spores in the upper
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