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20. Raphistemma Wallich, Pl. Asiat. Rar. 2: 50. 1831.
大花藤属 da hua teng shu
Lianas woody. Leaves opposite, long petiolate, 3-5-veined from base. Inflorescences extra-axillary, umbel-like to short racemelike, large, long pedunculate. Calyx with many basal glands. Corolla campanulate, large; lobes overlapping to right. Corona lobes separate, inserted at base of gynostegium, linear-subulate, longer than gynostegium and exserted from corolla tube. Filaments connate; anther appendages short, sharply bent; pollinia 2 per pollinarium, ellipsoid, pendulous. Stigma head broadly rounded, depressed. Follicles fusiform or cylindric, thick, with a fibrous pericarp. Seeds ovate.
Two species: SE Asia, both in China.
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Buds 0.8-1.4 cm; corolla tube 0.8-1.6 cm, lobes as long as or slightly longer, spreading-rotate; corona lobes exserted and easily seen in herbarium material |
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1 Raphistemma hooperianum |
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Buds (1.7-)2.2-3.1 cm; corolla tube up to 2.5 cm, lobes shorter, straight, subrevolute; corona lobes usually concealed in herbarium material |
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2 Raphistemma pulchellum |
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Lower Taxa
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