. The classification of flowering plants. Plants. 132 FLOWERING PLANTS [CH. In the branching of the definite inflorescence the bracteole on the main axis becomes the bract of the axis of the next higher degree. The number of branches is reduced in the higher grades of branching. Thus the pleiochasium passes over in its higher grades into dichasia, or even, as in Euphorbia, into monochasia, while the dichasia often pass over into Fig. 53. Diagrams of cymose inflorescences (partly after Eichler, but modified). A, dichasial cyme; B, bostryx; C, cincinnus; D, rhipidium; E, drepanium.
. The classification of flowering plants. Plants. 132 FLOWERING PLANTS [CH. In the branching of the definite inflorescence the bracteole on the main axis becomes the bract of the axis of the next higher degree. The number of branches is reduced in the higher grades of branching. Thus the pleiochasium passes over in its higher grades into dichasia, or even, as in Euphorbia, into monochasia, while the dichasia often pass over into Fig. 53. Diagrams of cymose inflorescences (partly after Eichler, but modified). A, dichasial cyme; B, bostryx; C, cincinnus; D, rhipidium; E, drepanium. The figures 1, 2, 3 &c. mark the flowers and their order of age (also indicated by the size of the circles); the letters h^, &c. mark the bracts in whose axils the flowers 2, 3, &c. respectively arise. A is a side view, all the shoots being represented in one plane ; the rest are ground-plans. From Willis. The form of the monochasium varies according to the arrangement of the successive branches as follows:—If each successive branch falls on the same side of the relatively main axis, there results the bostryx (fig. 53, B) (german Schraubel, often known as a helicoid cyme) as in Hemerocallis, or drepanium (fig. 53, E) (german Sichel) occurring in Juncaceae,. 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 Rendle, A. B. (Alfred Barton), 1865-1938. Cambridge, University press
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1904
