. Botany of the living plant. Botany; Plants. THE INFLORESCENCE, AND THE FLOWER 267 parts, sometimes additional whorls that are added. All these methods appear exemplified in the Rosaceae. The following diagrams may be quoted as illustrating the pleiomeric variations within that family, though without suggesting any actual line of Descent (Fig. 191). In Sibbaldia, the pentamerous flower has five stamens. Quillaija has two whorls of five (diplostemonous), and this probably represents the fundamental type for the Rosaceae, as it corresponds to that of related families with the formula (S P , A5+
. Botany of the living plant. Botany; Plants. THE INFLORESCENCE, AND THE FLOWER 267 parts, sometimes additional whorls that are added. All these methods appear exemplified in the Rosaceae. The following diagrams may be quoted as illustrating the pleiomeric variations within that family, though without suggesting any actual line of Descent (Fig. 191). In Sibbaldia, the pentamerous flower has five stamens. Quillaija has two whorls of five (diplostemonous), and this probably represents the fundamental type for the Rosaceae, as it corresponds to that of related families with the formula (S P , A5+5- G5)- But in the Rosaceae the matter does not stop there. Further steps are taken till an indefinite number of stamens is arrived at. For instance,. Z J£.. 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 Bower, F. O. (Frederick Orpen), 1855-1948; Wardlaw, C. W. (Claude Wilson), 1901-. London, Macmillan and Co. , ltd.
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