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

60. Ophiorrhiza rufipilis H. S. Lo, Bull. Bot. Res., Harbin. 10(2): 17. 1990.

红毛蛇根草 hong mao she gen cao

Herbs, suberect to procumbent and rooting along lower portion; stems drying striate, densely reddish brown villous with multicellular moniliform trichomes. Leaves in markedly unequal pairs; petiole 1-5 cm, densely villous; blade drying papery, pallid green, oblong-lanceolate, lanceolate, elliptic, or subovate, larger ones 3-10 × 1-4 cm, smaller ones 1-6 × 0.5-2.5 cm, adaxially sparsely strigose-villous, abaxially densely pubescent on principal veins, base obtuse, subrounded, or occasionally subcordate, margins ciliate, apex acuminate or obtuse and abruptly acuminate; secondary veins in larger leaves 10-16 pairs, in smaller leaves 5-8 pairs; stipules generally persistent, lanceolate-triangular or usually 2-lobed, 7-9 mm, sparsely ciliate, long acuminate. Inflorescence cymose, several to many flowered, densely reddish brown villous; peduncle shorter than 1 cm; axes rather short, helicoid; bracts linear, ca. 5 mm, ciliate. Flowers with biology unknown, subsessile or on pedicels to 1.5 mm. Calyx with hypanthium turbinate-subglobose, ca. 1.5 × 1.5 mm, densely villous; lobes subovate or lanceolate, 3.5-4 mm, glabrescent, pinnately veined, hispid along margin and midrib, acute to shortly rounded. Corolla white or pale yellow, funnelform, outside glabrescent with 5 hispid or villous lines on ridges; tube 18-19 mm, sparsely scaly pubescent inside; lobes lanceolate to ovate, ca. 4.5 mm, dorsally with broad ciliate wings, apex rostrate. Immature capsules subobcordate, ca. 3.5 × 7 mm, 5-ribbed, villosulous. Fl. Feb.

● Dense forests; ca. 1200 m. SE Yunnan.


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