Vasilis Teodoridis:
Rubiaceae
Lasianthus Jack.
Lasianthus sikkimensis Hook.f.; Fl. Brit. Ind. 3: 180. 1880.
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Lasianthus tsangii Merr. ex Li.
Shrubs; 1-3 m tall; branches and branchlets densely brown-tomentose. Leaves elliptic-lanceolate or elliptic; 12-20 cm long; 2.5-5 cm broad; the apex cuspidate-acuminate; the base acute or obtuse; usually recurved at margin; subcoriaceous or thinly coriaceous; glabrous above; densely brown-tomentose beneath; nerves 8-10 pairs; midrib and nerves elevated conspicuously beneath; nervules subparallel; conspicuous beneath; petioles 6-14 mm long; tomentose; stipules triangular; 2-3 mm long densely tomentose. Cymes sessile; fascicled; 1-3-flowered; bracts persistent; linear to lanceolate; up to 2 cm long; brown-tomentose. Flowers sessile or subsessile; calyx 3-4 mm long; the tube glabrous; the lobes 5; triangular; hirsute outside; corolla c. 1 cm long; puberulous outside. Fruits ellipsoid; 6-8 mm long; glabrous except on the persisting hirsute calyx lobes; pyrenes 5.
Forests; shaded and wet places; 300-1600 m. Yunnan; Guangxi; Guangdong; Fujian; Taiwan [Thailand; N Vietnam; Sikkim; NE India; Bangladesh and the Philippines].