. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. 714 THE SUBDIVISIONS OF THE VEGETABLE KINGDOM. the latter their condition parallels that of the Hydropterides. Lepidodendracese and SigillariacesB are represented by fossil forms only. LycopodiacecB.—The Club-mosses proper include some 100 species, distributed over various parts of the globe. The habit of a typical Lycopodium is indicated in the accompanying figure of L. annotinuTn, with its branching stem closely set with simple, scale-like leaves and terminal cones. The species common in mountain r
. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. 714 THE SUBDIVISIONS OF THE VEGETABLE KINGDOM. the latter their condition parallels that of the Hydropterides. Lepidodendracese and SigillariacesB are represented by fossil forms only. LycopodiacecB.—The Club-mosses proper include some 100 species, distributed over various parts of the globe. The habit of a typical Lycopodium is indicated in the accompanying figure of L. annotinuTn, with its branching stem closely set with simple, scale-like leaves and terminal cones. The species common in mountain regions in this country are L. clavatum, L. alpinum, and L. Selago; L. annotinum. Fig. iOL—Lycopodium annotinum. (fig. 404) is also met with. Of these L. Selago alone is devoid of cones, its sporangia occurring on the ordinary leaves. The sporangium is generally large and kidney- shaped, and is attached to the base of the upper side of the leaf (fig. 405*); its concavity is directed towards the axil of the leaf. Till recently the life-history of Lycopodium was unknown, as difficulty was experienced in causing the spores to germinate. It was first observed in certain tropical species, L. oernuum and others. In this species the prothallium has the form of a tiny tuberous body, with a lobed fringe on which the antheridia and archegonia are developed. The history of development of the sporophyte from the egg has been followed and is of some mterest. In L. cernuum the young plant consists of a tubercle bearing a tuft of. 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 Kerner von Marilaun, Anton, 1831-1898; Oliver, F. W. (Francis Wall), 1864-1951; Busk, Marian (Balfour) Lady, 1861-1941; Macdonald, Mary Frances (Ewart); Kerner von Marilaun, Anton, 1831-1898. Pflanzenleben. English. New York, H. Holt and Company
Size: 1700px × 1470px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1895
