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Marsdenia formosana

Description from Flora of China

Lianas to 3 m. Branches stout, pubescent along 2 longitudinal lines when young. Petiole 1.5-3(-7.5) cm; leaf blade ovate to ovate-oblong, 8-12(-22) × 4.5-7(-16) cm, papery, glabrous or sometimes sparsely puberulent adaxially, base shallowly cordate or rounded, apex acute and mucronate; lateral veins 4 or 5 pairs. Inflorescences umbel-like clusters of cymules, many flowered; peduncle 4-6(-7.5) cm. Pedicel 1-1.3 cm, appressed puberulent. Sepals elliptic to broadly ovate, 2-2.5 × ca. 2 mm, apex acute, pubescent; glands absent. Corolla pinkish white, ca. 5 mm, bowl-shaped with rotate lobes; lobes 3-3.5 × 1.8-2 mm, glabrous outside, stiffly white pubescent inside except near margin. Corona lobes oblong-lanceolate, fleshy, shorter than anthers. Anthers nearly square, apical appendages orbicular; pollinia oblong. Stigma head produced into a long threadlike beak exserted from corolla tube. Follicles lanceolate, ca. 10 cm. Seeds ovate-oblong, 1-1.5 cm; coma to 4 cm. Fl. Mar-Jul.

Forests; ca. 2600 m. Taiwan, Yunnan [Japan (Ryukyu Islands)].


 

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