. The origin of floral structures : through insect and other agencies. Plants; Flowers; Flowers. SENSITIVENESS AND IRRITABILITY OF PLANT ORGANS. 161 inedite, qu'il designe sous le nom d'Ypomaia seneitiva. lie tiHsn membratieux de la coroUe campannlee, de cetfce plante est Boutenu par des filets ou par des nervures qui, au moindre attouchement, se plissent ou (Cincv/rvent sinueusement, de maniere a entrainer le tiasu membraneux de la corollo, laquelle, de cette maniere, Be ferme completement; elle ne tarde point a s'oavrir de nonveau lorsque la cause qui avait determine sa plicature a cesse d'a
. The origin of floral structures : through insect and other agencies. Plants; Flowers; Flowers. SENSITIVENESS AND IRRITABILITY OF PLANT ORGANS. 161 inedite, qu'il designe sous le nom d'Ypomaia seneitiva. lie tiHsn membratieux de la coroUe campannlee, de cetfce plante est Boutenu par des filets ou par des nervures qui, au moindre attouchement, se plissent ou (Cincv/rvent sinueusement, de maniere a entrainer le tiasu membraneux de la corollo, laquelle, de cette maniere, Be ferme completement; elle ne tarde point a s'oavrir de nonveau lorsque la cause qui avait determine sa plicature a cesse d'; * M. Dntrochet then observes that this phenomenon is in no- way essentially different from the closing of the corolla of Convolvulus, to which YpomcBa is nearly allied, when it passes into the sleep- ing state, as does the calyx or perianth of the Nyctaginem. Lojpezia coronata exhibits a curious and rapid movement. a i c Fig. ia.—Lopetia (after Hlldebrsnd). (Foi*<le«crlptlon, Bee text.) in a staminode. Miiller thus describes it: f " In each flower there is present one perfect stamen; a second, standing immediately below, is reduced to a spathulate leaf, whose two halves fold upwards, and, in the first stage, projecting horizontally from the flower, inclose the anther of the perfect stamen (Fig. 48, a). The stalk of the spathulate leaf has an elastic tension downwards (6) ; the filament of the stamen an elastic tension upwards (6), so when an insect alights on the projecting spoon-shaped blade, as the only convenient * Recherchee Anatomiques et Fhyaiolngiquea eur la Structure Intime dea Amimcmx et dea Tigitanix et aw leu/r MoiiUti, 1824, p. 64. t Fertiliaation, etc., p. 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 Henslow, George, 1835-1925. New York : Appleton
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Keywords: ., bookcentury1800, bookdecad, booksubjectflowers, booksubjectplants
