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

13. Tarenna pubinervis Hutchinson in Sargent, Pl. Wilson. 3: 411. 1916.

滇南乌口树 dian nan wu kou shu

Shrubs or small trees, 0.5-6 m tall; branches puberulent to pilosulous, becoming gray with age. Petiole 5-25 mm, strigillose to hirtellous; leaf blade drying papery or membranous, blackish brown, oblong-elliptic, oblong-lanceolate, lanceolate, or oblanceolate, 6-22 × 2-7.8 cm, strigillose to hirtellous on both surfaces with pubescence denser on principal veins, base acute to attenuate, apex caudate-acuminate or acuminate; secondary veins 7-10 pairs, apparently without domatia; stipules generally persistent and becoming yellowed and hardened, interpetiolar or shortly united around stem, triangular to ovate, 3-9 mm, pilosulous to strigillose becoming glabrescent, long acuminate to aristate or cuspidate. Inflorescences cymose, ca. 3 × 3.5 cm, few flowered, densely strigillose, subsessile; bracts linear, 1.5-2 mm; pedicels 1-2.5 mm. Flowers pedicellate. Calyx glabrous or sparsely pubescent; hypanthium portion obconic, 1-1.5 mm; limb lobed for ca. 1/2; lobes lanceolate, 1-1.75 mm, ciliate. Corolla pale green, glabrous outside; tube 4-5 mm, villosulous inside; lobes narrowly oblong, 5-6 mm, obtuse. Ovules ca. 3 per cell. Berry subglobose to ellipsoid, 5-10 mm in diam., puberulent to glabrescent; seeds 1-6. Fl. Mar-May, fr. Jun-Jan.

● Forests in valleys; 700-2700 m. Guangxi, Sichuan, Yunnan.


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