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Project Name Data (Last Modified On 9/24/2013)

Flora Data (Last Modified On 9/24/2013)
Contributor W. G. D'Arcy
PlaceOfPublication Ann. Sci. Nat. (Paris) ser. 1(9): 423. 1826.
Note TYPE: C. mucunoides Desv.
Description Erect or climbing perennial herbs, often robust. Leaves pinnate trifoliolate, stipels and stipules scale-like. Inflorescences axillary racemes or fascicles, the rachis, when present, nodose with flowers in small fascicles on the nodes; pedicels short or long, bracts and bracteoles small, sometimes caducous. Flowers some- times showy, the calyx campanulate tubular, 5-toothed, the upper pair fused partway up, forming a lip, the lower 3 lanceolate; corolla pink, white or violet, narrow, the standard obovate with inflexed basal auricles, the wings and keel narrow; stamens diadelphous, the vexillary stamen free, the other filaments united halfway or less, the anthers 8-9, all alike, ellipsoidal, glabrous, dorsifixed; ovary sessile, hirsute, ovoid, many-ovulate, the style slender, incurved, glabrate, es- pecially above, the stigma capitate globose or compressed. Legume linear oblong, compressed, 2-valved, demarcated between the seeds, elastically dehiscent; seeds several, ovoid, aril wanting.
Habit herbs
Note a genus of 6-8 species
Distribution mainly centered in South America, but extending into Central America and introduced and naturalized in the Old World tropics.
Note There are reports that plants in this genus are toxic to livestock, and in some countries they have been used as insecticides. In Central America, the vines are sometimes used to scour pots.
Key a. Leaflets glabrate above; inflorescences fasciculate, pedicels more than 4 mm long; corolla pilose outside; seeds greenish ...... 2. C. galactioides aa. Leaflets pubescent overall; inflorescence racemose, pedicels less than 4 mm long; corolla glabrate outside; seeds brownish. b. Stems soon becoming fine puberulent or glabrate; bracteoles ca. 2 mm long, not exceeding the calyx tube, early caducous; pods more than 5 mm wide ...... 1. C. coeruleum bb. Stems remaining long pilose velutinous; bracteoles 4-6 mm long, nearly as long as the calyx lobes, mostly persistent in flower; pod less than 5 mm wide ...... 3. C. mucunoides
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