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

11. Leptodermis hirsutiflora H. S. Lo, J. Trop. Subtrop. Bot. 7(1): 19. 1999.

拉萨野丁香 la sa ye ding xiang

Shrubs; branchlets terete, long branches with conspicuous internodes, short branches usually ca. 1 cm, young branches shortly pilose, glabrescent when old. Leaves subsessile or petiole ca. 0.5 mm; blade oblong or elliptic, sometimes lanceolate or ovate, 7-9 mm on long branches, 2-3 mm on short branches, glabrous on both surfaces, base attenuate, apex obtuse or slightly rounded; lateral veins inconspicuous; stipules broadly triangular, ca. 1 mm, apiculate. Flowers sessile, terminal or axillary on branchlets, usually densely flowered; bracteoles 2, membranous, obovate, ca. 3.5 mm, connate below middle portion or one side free, with brown veins, densely hirsute outside, apex apiculate. Long-styled flower: calyx tube obovate, ca. 2 mm, glabrous, lobes 5, narrowly triangular-lanceolate, ca. 2 mm, densely hirsute; corolla blue, narrowly funnelform, densely hirsute outside, tube 8-9 mm, villous inside, base ca. 2.5 mm in diam., lobes 5, subovate, ca. 2.5 mm, apex incurved, with a beak ca. 0.5 mm; stamens 5, inserted at base of throat, filaments very short or absent, anthers linear, ca. 3 mm, nearly included; style 11-12 mm, stigmas 4- or 5-lobed, lobes linear, exserted. Short-styled flowers similar to long-styled flowers; calyx tube ca. 2 mm, lobes ca. 1.4 mm, acute; corolla tube very shortly pilose outside; stamens inserted above corolla tube throat, filaments ca. 0.8 mm, anthers exserted; style ca. 5.5 mm, stigmas 3- or 4-lobed, included. Fruit ca. 5 mm, with persistent calyx lobes 2.5-3 mm, hirsute; seeds ca. 4 mm; aril reticulate, adherent to testa. Fl. Jul.

● Thickets; 4000-4100 m. Xizang.

1 Calyx lobes glabrous except ciliate on margins; corolla pubescent.   11a var. ciliata
+ Calyx lobes densely hirsute; corolla densely hirsute outside, villous inside.   11b var. hirsutiflora

Lower Taxa


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