. A general system of botany, descriptive and analytical. In two parts. Part I. Outlines of organography, anatomy, and physiology. Part II. Descriptions and illustrations of the orders. By Emm. Le Maout [and] J. Decaisne. With 5500 figures by L. Steinheil and A. Riocreux. Translated from the original by Mrs. Hooker. The orders arranged after the method followed in the universities and schools of Great Britain, its colonies, America, and India; with additions, an appendix on the natural method, and a synopsis of the orders, by Hooker. Botany. 134 ANATOMY. 703), after whicli both the septa
. A general system of botany, descriptive and analytical. In two parts. Part I. Outlines of organography, anatomy, and physiology. Part II. Descriptions and illustrations of the orders. By Emm. Le Maout [and] J. Decaisne. With 5500 figures by L. Steinheil and A. Riocreux. Translated from the original by Mrs. Hooker. The orders arranged after the method followed in the universities and schools of Great Britain, its colonies, America, and India; with additions, an appendix on the natural method, and a synopsis of the orders, by Hooker. Botany. 134 ANATOMY. 703), after whicli both the septa and the walls of the mother-cells disappear, and the four nuclei (p) which filled them are set free as pollen-grains (fig. 704). As they grow (figs. 706 and 706), the cellular tissue of the anther, in the middle of which the cavities had been formed, are absorbed ; a layer of cells which formed the walls of the cavities now lines the membrane of the epidermis (fig. 699, oe), and rapidly changes into a layer of fibrous cells (e) ; the tissue which sepa- rated the small cavities becomes gradually thinner, and forms a septum which projects from the connective towards the line of dehiscence; this septum is soon destroyed, and the two cavities form but one {anther-cell). In some plants this septum is persistent, and the anther remains quadrilocular [Butomus, fig. 326). In many plants the remains of the mother- cells only partially disappear, and the rest connect the pollen-grains, as in Orchis (figs. 359 and 360), where an elastic network causes them to cohere in small masses. Carpels.—The anatomy of the carpellary leaves is analogous to that of ordinary 704. Melon. 705. Melon. 706. Melon. ng pollen-grains, Nearly adult pollen Eipe pollen free (mag.). (mag.). (mag.).. 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 wo
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1873
