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FOC | Family List | FOC Vol. 10 | Fabaceae

66. Paraderris (Miquel) R. Geesink, Leiden Bot. Ser. 8: 109. 1984.

拟鱼藤属 ni yu teng shu

Authors: Dezhao Chen & Les Pedley

Derris sect. Paraderris Miquel, Fl. Ned. Ind. 1: 145. 1855.

Lianas. Stipules small. Leaves imparipinnate; stipels much reduced or absent. Flowers in axillary pseudoracemes, occasionally aggregated into pseudopanicles. Brachyblasts rather thin, with (1 or)2 or 3(-5) flowers. Bracts shorter than corresponding flower buds. Bracteoles present. Calyx with 5 short lobes. Corolla white to rose-red; standard blade elliptic to suborbicular, reflexed at base; basal calluses distinct, large; wings and keel petals ± equally long. Stamens monadelphous; upper staminal filament adnate to other 9; anthers usually with trichomes. Disk distinct, flat to slightly hollow. Ovary with trichomes; ovules 1-7. Legume indehiscent, woody to thickly woody; either both sutures with a longitudinal wing or winged only on adaxial suture. Seeds 1 to several per legume, lens-shaped; radicle folded.

About 15 species: through SE Asia to New Guinea, absent from Australia and Pacific islands; six species (three endemic, two introduced) in China.

1 Flowers in pseudopanicles; leaflets 9-15   (2)
+ Flowers in pseudoracemes; leaflets 5-13   (4)
2 (1) Leaflet blades subleathery, apex obtuse to acute; flowers less than 1.2 cm; legume ca. 3 cm.   3 P. canarensis
+ Leaflet blades membranous, apex caudate-acuminate to acuminate; flowers 1.5-1.8 cm; legume more than 4 cm   (3)
3 (2) Leaflets 9-13, blades abaxially glaucous when dry; branchlets yellowish pubescent; corolla rose-red; pedicel 0.8-1 cm.   1 P. glauca
+ Leaflets 13 or 15, blades abaxially olive-green when dry; branchlets glabrous; corolla whitish; pedicel 1-2 cm.   2 P. hainanensis
4 (1) Leaflets 9-13, blades abaxially sericeous; corolla standard sericeous outside.   4 P. elliptica
+ Leaflets 5-9, blades abaxially glabrous; corolla standard glabrous outside   (5)
5 (4) Leaflet blades papery, 5-9 cm, apex shortly and obtusely acuminate; rachis of inflorescences puberulent.   5 P. hancei
+ Leaflet blades subleathery, 10-15 cm, apex caudate-acuminate; rachis of inflorescences glabrous; cultivated.   6 P. malaccensis

Lower Taxa


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