. The commonly occurring wild plants of Canada. A flora for the use of beginners. Botany. EQUISETACE^. 26T tho plant, broadly triangular, variously decompound, witli stalked divisions. Fertile segment erect, 2-4-pinnate.—Not uncommon. 18. OPHIOCiLOS'SOI, L. Addek's Tongue. 0. VUlga'tum, L. Sterile part of the frond ovate or elliptical-oblong, 2-3 inches long, rather fleshy, sessile, near the mid- dle of the stalk; the latter 6-12 inches high.—Bogs and grassy meadows. Okder CXin. EQUISETA':. (HoHSETAiL Family.) The only geuns of the Order is EamsE'TlTM, L. Horsetail. Scodb- ING ECSH. Fig. 2
. The commonly occurring wild plants of Canada. A flora for the use of beginners. Botany. EQUISETACE^. 26T tho plant, broadly triangular, variously decompound, witli stalked divisions. Fertile segment erect, 2-4-pinnate.—Not uncommon. 18. OPHIOCiLOS'SOI, L. Addek's Tongue. 0. VUlga'tum, L. Sterile part of the frond ovate or elliptical-oblong, 2-3 inches long, rather fleshy, sessile, near the mid- dle of the stalk; the latter 6-12 inches high.—Bogs and grassy meadows. Okder CXin. EQUISETA':. (HoHSETAiL Family.) The only geuns of the Order is EamsE'TlTM, L. Horsetail. Scodb- ING ECSH. Fig. 272 is a view of the fertile stem of Equise'tum arvense, the Common Horsetail, of about the natural size. It may be observed early in spring almost anywhere in moist sandy or gravelly soil. It is of a pale brown colour, and in place of leaves there is at each joint a sheath split into several teeth. At the summit of the stem is a sort of conical catkin, made up of a large number of six-sided bodies, each attached to the stem by a short pedicel. Each of these six-sided bodies turns out on examination to be made up of six or seven sporangia or spore-cases, which open down their inner margins to discharge their spores. Figs. 273 and 274 are enlarged outer and inner views of one of them. The spores themselves are of a similar nature to those of Fig. 272. ^jjg Ferns, and reproduction is carried on in the same manner ; but each spore of the Horsetail is furnishea with four minute tentacles which closely envelope it when. 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 Spotton, Henry Byron, 1844-. Toronto, W. J. Gage & Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1897
