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

5. Wrightia sikkimensis Gamble, Bull. Misc. Inform. Kew. 1908: 447. 1908.

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Wrightia hainanensis Merrill var. chingii Tsiang; W. schlechteri H. Léveillé.

Trees to 12 m tall. Branchlets dark brown, puberulent to glabrous. Petiole ca. 5 mm; leaf blade ovate to obovate, 6-17 X 3-6 cm, glaucescent, glabrous except along veins on abaxial surface, apex caudate-acuminate; lateral veins 9-15 pairs. Cymes puberulent; peduncle to 3 cm. Pedicel ca. 1 cm. Sepals ovate, ca. 2.5 mm. Corolla yellowish, rotate or subrotate, tube 2-2.5 mm; lobes oblong or narrowly obovate, 1.2-1.4 cm, papillate; corona scales 10, the 5 inserted at base of corolla lobes ca. 6 mm, entire at apex, the 5 at corolla throat ca. 2.5 mm, 2-cleft at apex. Anthers puberulent, exserted. Ovaries distinct. Follicles cylindric, distinct, to 35 cm X 4-7 mm, lenticellate. Seeds narrowly fusiform, 1.5-2 cm, coma to 4 cm. Fl. Apr-Jun, fr. Jun-Dec.

Montane forests, valleys, limestone brushwoods; 500-1500 m. Guangxi, Guizhou, Hainan, Yunnan [NE India, Sikkim, Vietnam].


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