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FOC | Family List | FOC Vol. 16 | Apocynaceae | Aganosma

2. Aganosma cymosa (Roxburgh) G. Don, Gen. Hist. 4: 77. 1837.

云南香花藤 yun nan xiang hua teng

Echites cymosa Roxburgh, Fl. Ind. ed. 1832 2: 16. 1832; Aganosma cymosa var. fulva Craib; A. cymosa var. glabra A. de Candolle; A. cymosa var. lanceolata J. D. Hooker; A. harmandiana Pierre in Spire & A. Spire.

Lianas to 10 m, pale brownish tomentose. Petiole 1-2 cm; leaf blade broadly ovate or orbicular, 5-16 X 4-12 cm, base rounded or obtuse, apex acuminate or obtuse, rarely retuse; lateral veins 8-10 pairs. Cymes terminal, many flowered; peduncle to 6 cm; bracts and bracteoles very narrowly elliptic, 0.9-1.1 cm. Pedicel ca. 5 mm. Calyx with several glands inside margin of sepals; sepals very narrowly elliptic, 0.9-1.1 cm, pubescent on both surfaces. Corolla white, minutely tomentose outside, glabrous at throat; tube shorter than sepals, 6-7 mm; lobes oblong, as long as tube. Disc longer than ovary. Ovary pubescent at apex. Follicles 2, cylindric, to 30 X 0.8-1.2 cm, yellow hirsute. Seeds oblong, 1-2 cm X ca. 5 mm, coma 2-4.5 cm. Fl. May-Aug, fr. Sep-Dec.

Open woods in humid valleys. SW Guangxi, S Yunnan [Bangladesh, Cambodia, India, Laos, Myanmar, Thailand, Vietnam]

The species is represented in China by var. cymosa. Aganosma cymosa var. elegans (G. Don) J. D. Hooker, which is readily distin-guished by its densely pubescent corolla throat and smaller leaves, is restricted to southern India and Sri Lanka.


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