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

1. Porterandia sericantha (W. C. Chen) W. C. Chen, Fl. Reipubl. Popularis Sin. 71(1): 384. 1999.

绢冠茜 juan guan qian

Randia sericantha W. C. Chen, Guihaia 7: 298. 1987.

Shrubs or trees, 1-8 m tall; branches compressed to terete, moderately to densely ferruginous hirtellous. Petiole 3-15 mm, moderately to densely pilosulous or hirtellous to glabrescent; leaf blade drying papery, elliptic or oblanceolate-oblong, 5.5-16 × 2-5 cm, adaxially and sparsely strigillose, abaxially sparsely to densely pilosulous or hirtellous, base acute to obtuse, apex acute to usually shortly acuminate; secondary veins 8-12 pairs, in abaxial axils with pilosulous domatia; stipules ovate to triangular, 5-7 mm, moderately to densely strigillose to hirtellous or glabrous. Inflorescences few to several flowered, cymose, 2-5.5 × 3-5 cm, densely pilosulous to hirtellous, sessile to pedunculate; peduncle to 0.5 cm; bracts triangular, lanceolate, or stipuliform, ca. 3 mm, acute to acuminate; pedicels 5-15 mm. Calyx densely pilosulous and/or strigose; ovary portion obconic, ca. 2 mm; limb 5-6 mm, lobed partially to deeply; lobes ovate-lanceolate, acute. Corolla white, outside densely yellow sericeous; tube ca. 30 × 3.5 mm, inside glabrous except with a villous ring at middle; lobes ovate-elliptic, ca. 12.5 × 6 mm. Stigma ca. 1.5 mm. Berry subglobose, 8-15 mm in diam., pilosulous to strigillose; seeds ca. 4 mm. Fl. May-Jun, fr. Aug-Jan.

● Forests or thickets at streamsides in valleys or on mountain slopes; 300-1500 m. Guangxi, Yunnan.


 

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