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

18. Psychotria yunnanensis Hutchinson in Sargent, Pl. Wilson. 3: 414. 1916.

云南九节 yun nan jiu jie

Psychotria kwangsiensis H. L. Li.

Shrubs, 1-4 m tall; stems glabrous. Petiole 1-5.5 cm, glabrous; leaf blade drying papery to membranous, dark brown or greenish brown, sometimes paler below, obovate-oblong, elliptic, ovate-oblong, or oblanceolate, 9-30.5 × 3-11 cm, glabrous on both surfaces or puberulent to hirtellous along principal veins abaxially, base acute to obtuse, margins flat, apex acuminate or acute; secondary veins 8-16 pairs, not forming a submarginal vein, without domatia; stipules caducous, ovate, interpetiolar, 6-15 mm, glabrous or hirtellous in basal portion, 2-lobed for 1/4-1/3, lobes narrowly triangular, acuminate. Inflorescences terminal or pseudoaxillary, thyrsiform to paniculate, many flowered, puberulent or hirtellous in lines often becoming glabrescent; peduncle 1-6 cm; branched portion pyramidal to broadly pyramidal, 3-10 × 2.5-6.5 cm, with 1 or 2 pairs of well-developed secondary axes, with 3-11 glomerules or cymules; bracts triangular to lanceolate, 1-10 mm, acuminate; pedicels to 3 mm. Flowers subsessile to pedicellate in groups of 5-15. Calyx glabrous; hypanthium portion obconic, ca. 1 mm; limb campanulate, 1.3-2.5 mm, lobed shallowly to deeply; lobes deltoid to narrowly triangular or narrowly lanceolate. Corolla white, salverform, outside glabrous; tube ca. 5 mm, in throat villous; lobes elliptic-oblong, ca. 3 mm. Drupes ellipsoid or subglobose, 6-12 × 4-7 mm, color not noted; pyrenes 4- or 5-ridged. Fl. Apr-Dec.

● Forests in ravines, hill slopes; 800-2300 m. Guangxi (Napo), Xizang (Mêdog), Yunnan.


 

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