5. Medinilla fengii (S. Y. Hu) C. Y. Wu & C. Chen, Fl. Yunnan. 2: 129. 1979.
西畴酸角杆 xi chou suan jiao gan
Pachycentria fengii S. Y. Hu, J. Arnold Arbor. 33: 170. 1952; Medinilla taiwaniana Yuen P. Yang & H. Y. Liu; P. formosana Hayata.
Shrubs 50-120 cm tall, usually epiphytic, many-branched. Stems subterete or obtusely 4-sided, conspicuous white lenticels, puberulous or glabrous; bark brown. Petiole 5-12 mm; leaf blade obovate to elliptic, 4-10 × 2-3.5 cm, leathery, abaxially densely furfuraceous tuberculate but glabrescent, adaxially densely reticulate scrobiculate but glabrescent, secondary veins 1 on each side of midvein, base cuneate, margin entire or sparsely serrulate, apex acuminate to caudate-acuminate. Inflorescences terminal, corymb-panicles, 2-3 × 3-5 cm, 3-6(-16)-flowered. Pedicel 5-10 mm. Hypanthium funnel-shaped, 4-5 mm, minutely tuberculate, glabrous. Calyx lobes 4, ovate, ca. 2 mm, apex rounded and apiculate. Petals 4, pink, broadly obovate, 6-7.5 mm, small tuberculate, apex retuse, truncate, or acute. Stamens 8, subequal, ca. 9 mm; anthers ca. 3.5 mm, bases abaxially slightly decurrent forming a short spur and adaxially subulate bulging. Ovary glabrous, apex dentate. Berry urceolate to subglobular, 6-7 × 4-5 mm. Seeds obovate, glabrous. Fl. May-Jun, fr. Oct-Jan.
● Broad-leaved evergreen forests, shaded damp places, rock crevices; 600-1800 m. Taiwan (Xinzhu), Yunnan.