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

17. Tarenna yunnanensis F. C. How ex W. C. Chen, Acta Phy­totax. Sin. 22: 142. 1984.

云南乌口树 yun nan wu kou shu

Shrubs or trees, to 3 m tall; branches densely yellowish brown villosulous to tomentulose. Petiole 0.5-2.3 cm, densely villosulous to tomentulose; leaf blade drying papery, elliptic, obovate, elliptic-oblong, or oblanceolate-oblong, 11-32 × 3.5-12 cm, adaxially subglabrous or sparsely hispidulous with pubescence denser along principal veins, abaxially densely villosulous to pilosulous, base cuneate, obtuse, or acute, apex abruptly shortly acuminate; secondary veins 8-12 pairs, apparently without domatia; stipules generally persistent, shortly united around stem, broadly triangular, 2.5-4 mm, densely villosulous, acute to cuspidate. Inflorescences cymose to corymbiform, 4-9 × 4-7 cm, many flowered, densely pilosulous, pedunculate; peduncle 1-3.5 cm; bracts linear to narrowly triangular, 1-4 mm; pedicels 2-9 mm. Flowers pedicellate. Calyx densely pilosulous; hypanthium portion cupulate, ca. 1 mm; limb 1-1.5 mm, lobed shallowly or for up to 1/2; lobes triangular. Corolla outside moderately to densely yellowish brown villosulous to pilosulous; tube 5-6.5 mm, sparsely pilosulous at throat; lobes narrowly oblong to spatulate, 4-4.5 mm, obtuse. Ovules 3-5 per cell. Berry subglobose, ca. 5 mm in diam., yellowish brown villous. Fl. Apr-Jun, fr. Jun.

● Forests or thickets in valleys or at streamsides; 100-200 m. Yunnan.


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