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Rapport Du Comite Consultatif; Report of the Advisory Committee Volume 27 downloadPDF, EPUB, MOBI
Rapport Du Comite Consultatif; Report of the Advisory Committee Volume 27 downloadPDF, EPUB, MOBI

Rapport Du Comite Consultatif; Report of the Advisory Committee Volume 27.cU S Government
Rapport Du Comite Consultatif; Report of the Advisory Committee Volume 27
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Author: U S Government
Page Count: 208 pages
Published Date: 16 Jan 2013
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781234317423
File Name: Rapport.Du.Comite.Consultatif;.Report.of.the.Advisory.Committee.Volume.27.pdf
Download Link: Rapport Du Comite Consultatif; Report of the Advisory Committee Volume 27
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1891 edition. Excerpt: ... at the ends or on the sides of the shoots, so as to resemble the "catkins" of an amentaceous inflorescence. Much controversy has, indeed, arisen as to whether the seeming amenta of these plants are really to be considered as inflorescences composed of a series of axes bearing numerous monandrous, naked flowers, or as single, polyandrous flowers. Following Linnreus, Griffith considered the aggregate of stamens to constitute a single flower. The reasons assigned by Griffith for this opinion were the absence of bracts or scales intermixed witl) the individual stamens and the unjointed condition of the filaments. The stamens are serially continuous with the leaves, in spires in the Abietinese, or in decussate whorls in the Cupressinese. Monstrous examples also show the passage of the stamens to leaves, as in some species of Podocarpus and Araucaria, as well as in Abietineret Van Tieghem, ' Traite, ' p. 737, says that the vascular bundles of Thuya form four sympodes which traverse the stem in a wavy or undulated manner. At each node is given off to the left a branch which runs through only one internode before it reaches a leaf. The leaves are thus in alternate pairs; and a transverse section shows six bundles--four cauline and two foliar; a subdivision of one of the foliar bundles would naturally accompany the formation of an additional leaf, as when a dimerous whorl becomes trimerous. t The now generally adopted view that the aggregate of stamens constitutes one flower was, as above stated, held by Linneeus, who included several genera of Conifers under his class Monadelphia (Polyandria), assigning to the male flowers of Pinus a 4-leaved calyx. Griffith, Itin. Jfotes, p. 376; Mohl, Vermischte Position of the Flowers.--The male flowers are...

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