. A manual of botany. Botany. MOEPHOLOGY OF EEPEODUCTIVE OEGANS 135 2. Addition or Multiplication of Parts.—This may be con- sidered under two heads. 1st. The addition of one or more entire whorls in one or more of the floral cycles. 2nd. An in- crease in the number of parts of one or more whorls. The former is commonly called augmentation, the latter chorisis, deduplication, or unliuiiig. a. Augmentation.—The increase in the number of whorls may occur in one or more of the floral cycles. Thus the Bar- berry {fig. 249) has two whorls of sepals, two of petals, and two of stamens ; in this flowe


. A manual of botany. Botany. MOEPHOLOGY OF EEPEODUCTIVE OEGANS 135 2. Addition or Multiplication of Parts.—This may be con- sidered under two heads. 1st. The addition of one or more entire whorls in one or more of the floral cycles. 2nd. An in- crease in the number of parts of one or more whorls. The former is commonly called augmentation, the latter chorisis, deduplication, or unliuiiig. a. Augmentation.—The increase in the number of whorls may occur in one or more of the floral cycles. Thus the Bar- berry {fig. 249) has two whorls of sepals, two of petals, and two of stamens ; in this flower, therefore, we have an addition of one whorl of members to each of the three external floral cycles. In the Poppy, we have a number of additional whorls of stamens {fig. 250). The increase in the number of the whorls is most common among the stamens. Very frequently there is one extra whorl intercalated here, so that the stamens are twice as numerous as the sepals or petals. So constant is this occurrence in Mono- cotyledons that many botanists regard two whorls of stamens as a normal feature of that group. Such flowers are said to be Fig. 249. Fig. 250. Fig. 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 Green, J. Reynolds (Joseph Reynolds), 1848-1914. London, J. & A. Churchill


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