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FOC | Family List | FOC Vol. 19 | Rubiaceae | Lasianthus

21. Lasianthus lancifolius J. D. Hooker, Fl. Brit. India. 3: 187. 1880.

美脉粗叶木 mei mai cu ye mu

Shrubs, 1.5-3 m tall; branches and branchlets puberulent. Petiole 5-10 mm, appressed pubescent; leaf blade papery, lanceolate to elliptic-lanceolate, 13-20 × 2.5-4 cm, glabrous adaxially, puberulent on nerves and nervules as well as margin abaxially, base acute to obtuse, apex long acuminate; lateral veins ca. 9 pairs, faint adaxially; nervules subreticulate, forked, very slender; stipules generally persistent, triangular, 2-3 mm, pubescent. Inflorescences glomerulate, sessile; bracts absent. Flowers sessile. Calyx puberulent; hypanthium portion campanulate, 1-1.5 mm; limb 1-1.5 mm; teeth subulate. Corolla 12-13 mm, puberulent outside, pubescent inside at upper half; lobes 5, ovate, ca. 2 mm. Fruit globose, 4-5 mm in diam., glabrous or sparsely puberulent, smooth; pyrenes 5.

Forests, shaded and wet places; 500-1700 m. Guangdong, Guangxi, Hainan, Yunnan [Bangladesh, Bhutan, NE India, NE Thailand, N Vietnam].


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