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. The various contrivances by which orchids are fertilized by insects. Fertilization of plants; Orchids. l-fg. Malaxm paludosa. (Partly copied from Bauer, but modiBeil from living specimens.) a. anther. v. spiral vessels. p. pollen. r, rostellum. cl. cliuandrum. s. stigma. I, labellum. I., the Bepal which in most orchids stands on the upper side of the flower. .V. Perfect flower viewed laterally, with the labellum in its natu- ral position, upwards. S Column viewed in front, showing the rostellum, the pocket-like stigma, and the anterior late- ral portions of the cliuandrum. C. Back view
. The various contrivances by which orchids are fertilized by insects. Fertilization of plants; Orchids. l-fg. Malaxm paludosa. (Partly copied from Bauer, but modiBeil from living specimens.) a. anther. v. spiral vessels. p. pollen. r, rostellum. cl. cliuandrum. s. stigma. I, labellum. I., the Bepal which in most orchids stands on the upper side of the flower. .V. Perfect flower viewed laterally, with the labellum in its natu- ral position, upwards. S Column viewed in front, showing the rostellum, the pocket-like stigma, and the anterior late- ral portions of the cliuandrum. C. Back view of the cohimn in a flower-bud, showing the-anthei with the included pear-shappd polliuia dimly seen, and th<! posterior edges of the clinau' drum. D. Back view of an expanded flower, with the anther now contracted and shrivelled, exposing the polliuia. G. The two pollinia atlnched to a little transverse mass of viscid matter, hardened by spirits 0/. 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 Darwin, Charles, 1809-1882. New York, D. Appleton and Co.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895