The elements of botany for beginners and for schools . Fio. 527. Single plant of Physcomitrium pyriforme, , cut across; it consists of a single layer of cells. 8. Top of a 164 CRYPTOGAMOUS OR FLOWERLESS PLANTS. [SECTION 17. end of the stem. The analogue of the anther {Antheridinm) is a cellularsac, which in bursting discharges innumerable delicate cells floating in amucilaginous Lquid; each of these bursts and sets free a vibratile self- 631 631 eil 640. moving thread. These threads, one or more, reach the orifice of the pistil-shaped body, the Pistillidium, and act upon a partic
The elements of botany for beginners and for schools . Fio. 527. Single plant of Physcomitrium pyriforme, , cut across; it consists of a single layer of cells. 8. Top of a 164 CRYPTOGAMOUS OR FLOWERLESS PLANTS. [SECTION 17. end of the stem. The analogue of the anther {Antheridinm) is a cellularsac, which in bursting discharges innumerable delicate cells floating in amucilaginous Lquid; each of these bursts and sets free a vibratile self- 631 631 eil 640. moving thread. These threads, one or more, reach the orifice of the pistil-shaped body, the Pistillidium, and act upon a particular cell at its basewithin. This cell in its growth develops into the spore-case and its stalk(when there is any), carrying on its summit the wall of the pistillidium,which becomes the calyptra. 501. Liverworts or Hepatic Mosses (Hepaticd) iu some kinds re-semble true Mosses, having distinct stem and leaves, although their leavesoccasionally run together; while in others there is no distinction of stemand leaf, but the whole plant is a leaf-like body, which produces rootlets onthe lower face and its fructification on the upper. Those of the moss-likekind (sometimes called Scale-Mosses) have their tender spore-cases splittinginto four valves; and with their spores are intermixed some slender spiral Fig. 529. Mnium cuspidatum, smaller than nature. 530. Itfs calyptra, detached,enlarged. 531. Its spore-case, with top of stalk, magnified, the lid (532) beingdetach
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1887
