. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. Kg. 275. Kg. 276. flower, /', which has withered, and giving off secondary axes, a" a", each terminated by a flower, and developed centripetally, the lowest being most expanded. In Streptocarpus polyanthus, and in several calceolarias, we probably have examples of compound definite inflores- cence. Here there are scorpioid cymes of pairs of flowers, each pair con- sisting of an older and a younger flower. Mixed Inploebscence.—Forms of inflorescence occur, in
. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. Kg. 275. Kg. 276. flower, /', which has withered, and giving off secondary axes, a" a", each terminated by a flower, and developed centripetally, the lowest being most expanded. In Streptocarpus polyanthus, and in several calceolarias, we probably have examples of compound definite inflores- cence. Here there are scorpioid cymes of pairs of flowers, each pair con- sisting of an older and a younger flower. Mixed Inploebscence.—Forms of inflorescence occur, in which' both the definite and indefinite types are represented. Thus, in Com- positae, such as Hawkweeds (Hieracia), the heads of flowers, taken as a whole, are developed centrifugally, the terminal head first; while the Kg. 276. False raceme or helicoid cyme of a species of Alstromeria. a' a" a'" a"". Separate axes successively developed, which appear to form a simple continuous raceme, of which the axes form the intemodes. It is a definite uniparous inflorescence, however, with centrifugal evolution. Each of the axes is produced in the axil of a leaf, and is terminated by a flower, /' /" /'" /"", opposite to that leaf, and the axes have a spiral aiTangement. Fig. 276. Uniparous racemose cyme, or cymose raceme of Campanula, a', Primary axis, termi- nated by a flower, /', which has already withered, and is beginning to pass into the state of fruit, a" a" a". Secondary axes, each tenninated by flowers, /", which are more advanced (the lower they are in their 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 Balfour, John Hutton, 1808-1884. Edinburgh : A. and C. Black
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1875
