. The natural history of plants. Botany. Fi&. 188. Fruit. Fia. 189. Fruit opened. or absent. The flowers are small and numerous,' in terminal or axillary racemes; these are ramified, consisting of a large number of regularly or irregularly branching cymes,' and CO- Fterocarp^ Draco. vered with sometimes large bracts, and small bractlets, either caducous or fairly persistent. AU the plants which in common with Dalbergia have alternate leaves and a dry fruit, with the seeds attached by the middle of the inner edge, so that they are neither ascending nor descending, have been united, into a s
. The natural history of plants. Botany. Fi&. 188. Fruit. Fia. 189. Fruit opened. or absent. The flowers are small and numerous,' in terminal or axillary racemes; these are ramified, consisting of a large number of regularly or irregularly branching cymes,' and CO- Fterocarp^ Draco. vered with sometimes large bracts, and small bractlets, either caducous or fairly persistent. AU the plants which in common with Dalbergia have alternate leaves and a dry fruit, with the seeds attached by the middle of the inner edge, so that they are neither ascending nor descending, have been united, into a separate subseries, which has been named Pterocarpea from the included genus Pterocarpus (figs. 188-189), whose fruit is one- seeded, suborbicular, or oblong, with the edge thinning ofi" into a sort of membranous wing. The ten genera of this subseries, distinguished from one another by the form of their anthers and fruit, are Dalbergia, Ecastaphyllum, MachcBvium, Cyclolohium, Dre- panocarpus, Platypodium, Tipuana, Centrolobium, Pterocarpus, and PoecilantJie. The six genera Andira, Geoffroea, Coumarouna (fig. 190), Pterodon, Buchresta, and Pissicalyx, form the small subseries Andirece or Geoffrceete in which both the wings and the pieces of the keel are free, or rarely united. The ovules are few or solitary ; and the fruit, always one-seeded, is usually an indehiscent drupe, or has a thin, turgid indehiscent pericarp. The single genus Bocoa forms a group apart, possessing the fruit of Dalbergia and the allied genera, with a dehiscent pericarp, a sub- regular corolla, an irregularly dentate, elongated gamosepalous calyx, and alternate leaves. In Lonchocarpets, the leaves are compound with the leaflets almost constantly opposite. The fruit is not drupaceous but dry and ' They are white or more frequently purple or violet. ^ Beniham (loe. cit.) divides this genus by means of the inflorescence, androceum, and fruit, into four sections, whose differentiating charac- ters are far
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
