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36. Belostemma Wallich ex Wight, Contr. Bot. India. 52. 1834.
箭药藤属 jian yao teng shu
Lianas, slender, woody. Inflorescences extra-axillary; peduncle and pedicels slender. Sepals overlapping; basal glands 5. Corolla rotate; tube short; lobes valvate. Corona lobes 5, inserted at back of stamens, fleshy, horned-falcate, horizontally stellate spreading. Filaments connate into a tube; anther appendages membranous, broadly ovate, covering stigma head; pollinia 2 per pollinarium, subglobose, horizontal or suberect. Gynostegium exceeding corolla tube. Stigma head discoid.
Three species: India, Nepal, China; all three in China.
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Leaves 8.5-11 × 7-8 cm; calyx and corolla glabrous; corolla yellow or yellowish |
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3 Belostemma cordifolium |
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Leaves 2.5-6 × 1.2-3 cm; calyx and corolla hairy; corolla purple or green with reddish margin. |
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(2) |
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| 2 (1) |
Leaf blade ovate-cordate, base cordate; branches, leaves, and outside of calyx hispid |
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1 Belostemma hirsutum |
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Leaf blade ovate, base broadly cuneate or rounded; branches pubescent along 2 lines; leaves and outside of calyx glabrous or glabrescent; sepals ciliate |
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2 Belostemma yunnanense |
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Lower Taxa
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