. The origin of floral structures : through insect and other agencies. Plants; Flowers; Flowers. PROGBESSIVE METAMORPHOSES. 289 compound blades are retained (see Fig. 24, p. 93). In Pedicularis the blades are present as a minute fringe on the edge. In Ranunculus, Potentilla, etc., the broad base of the petiole is the only part present, for in abnormal conditions the blade may be borne above (Fig. 66). Similarly, in a gamosepalons calyx the teeth as a rule seem to be all that remain to represent the blades ; for in Trifolium, repens, when virescent, trae unifoliate blades are developed on elong
. The origin of floral structures : through insect and other agencies. Plants; Flowers; Flowers. PROGBESSIVE METAMORPHOSES. 289 compound blades are retained (see Fig. 24, p. 93). In Pedicularis the blades are present as a minute fringe on the edge. In Ranunculus, Potentilla, etc., the broad base of the petiole is the only part present, for in abnormal conditions the blade may be borne above (Fig. 66). Similarly, in a gamosepalons calyx the teeth as a rule seem to be all that remain to represent the blades ; for in Trifolium, repens, when virescent, trae unifoliate blades are developed on elongated pedicels, all arising from the border of the calyx-tube (Fig. 67), in which the teeth become pinnately nerved 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
