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FOC | Family List | FOC Vol. 10 | Fabaceae | Spatholobus

5. Spatholobus discolor C. F. Wei, Bull. Bot. Res., Harbin. 5(2): 49. 1985.

变色密花豆 bian se mi hua dou

Climbing shrubs. Branchlets blackish brown, with numer­ous lenticels; branchlets, petiolules, panicles, and calyces his­pidulous with yellowish brown hairs. Petiole 2.5-4.5 cm, sub­glabrous; stipels subulate, stiff, ca. 1.5 mm; petiolules 4-5 mm, glabrescent; leaflets subleathery, yellowish brown hispidulous abaxially, subglabrous adaxially, lateral veins 5 or 6 pairs, often branched, tertiary veins often reticulate; terminal leaflet obovate or obovate-elliptic, 6-12.5 × 4.2-9.6 cm, symmetric, base ob­tuse, apex rounded; lateral leaflets narrowly elliptic or oblong, 6.5-11 × 4-7.3 cm, asymmetric, rounded at both ends or base slightly obtuse. Panicles terminal, 13-27 cm, many flowered; bracts narrowly triangular, 1.5-2 mm; bracteoles triangular, ca. 1 mm. Calyx 4-5 mm; teeth 1.5-2 mm, upper 2 ± connate, lower 3 triangular, apex acute, middle 1 slightly longer. Corolla purplish before flowering, becoming whitish in full bloom, membranous; standard suborbicular, 7-7.5 mm in diam., apex emarginate, claw 1-1.5 mm; wings narrowly elliptic, 7.5-8 mm, margin of lower part emarginate on one side, other side with short obtuse auricle at base, claw ca. 1.5 mm; keel obovate-ob­long, 7.5-8 mm, curved in upper part, ± connate at back, apex rounded, base with acute auricle on one side, claw 2-2.5 mm. Anthers elliptic, equal in size, ca. 0.7 mm. Ovary narrowly ob­long, 5-7 mm, slightly compressed, shortly stipitate. Legumes not seen. Fl. Sep.

● Mountain slopes, secondary forests or thickets; ca. 1700 m. S Yunnan (Lüchun).


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