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

1. Lasianthus attenuatus Jack, Trans. Linn. Soc. London. 14: 126. 1823.

斜基粗叶木 xie ji cu ye mu

Lasianthus densifolius Miquel; L. setosus Craib; L. wallichii Wight; L. wallichii var. hispidocostatus H. Zhu.

Shrubs, 1-2 m tall; branches and branchlets densely tomentose to hirsute or sometimes setose. Petiole 1-3 mm, tomentose to hirsute; leaf blade leathery or subleathery, oblong, elliptic-lanceolate, or oblong-ovate, 5-12 × 2.5-5 cm, glabrous adaxially, strigillose to hirtellous or tomentose abaxially, base slightly cordate or rarely rounded, slightly to markedly oblique, apex acute to cuspidate-acuminate; lateral veins 6-8 pairs; nervules subparallel, conspicuous abaxially; stipules triangular or ovate-lanceolate, 2-3 mm, tomentose to hirsute, apparently persistent. Inflorescence cymose or glomerulate, sessile, densely hirsute to hirtellous; bracts subulate to lanceolate, 6-15 mm, persistent. Flowers sessile. Calyx densely hirsute; hypanthium portion campanulate, ca. 1 mm; limb 1-2 mm, with 5 triangular teeth. Corolla sparsely hirtellous, puberulent to glabrescent outside, villous inside; tube 8-10 mm; lobes 5, spatulate, 4-5 mm. Fruit globose or ovoid, 5-10 mm in diam., densely hirsute, smooth; pyrenes 5 or 6. Fl. Apr, fr. Aug-Sep.

Forests, shaded and wet places; 200-1800 m. Fujian, Guangdong, Guangxi, Hainan, Taiwan, Yunnan [Bhutan, Cambodia, NE India, Indonesia, S Japan, Laos, Malaysia, Myanmar, Nepal, Papua New Guinea, Philippines, Thailand, Vietnam].


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