4. Medinilla nana S. Y. Hu, J. Arnold Arbor. 33: 168. 1952.
矮酸脚杆 ai suan jiao gan
Shrubs 15-100 cm tall, often epiphyte, stoloniferous, many-branched. Stems curved ascending, angled to winged, glabrous, later bark corky and wrinkled. Petiole 1-4 mm, glabrous; leaf blade obovate to elliptic, 2-3.5(-5) × 1.1-1.5(-2.8) cm, succulent to subleathery, both surfaces glabrous, secondary veins 1 on each side of midvein, base cuneate, margin basally entire and apically from middle sparsely serrulate, apex obtuse, subround, or retuse. Inflorescences terminal cymes, 1-3-flowered; peduncle ca. 5 mm, 4-sided. Pedicel ca. 1 mm. Hypanthium long funnel-shaped, ca. 6 mm, bulging. Calyx lobes ca. 2 mm, margin repand, apex obtuse to acute. Petals 4, pink, obovate, ca. 1.1 cm, slightly oblique, apex truncate. Stamens 8, equal; filaments filiform, ca. 5 mm; anthers ca. 4 mm, base subulate bulging; connective slightly inflated, base decurrent and forming a subulate spur. Ovary inferior, turbinate, 4-celled. Berry urceolate, ca. 10 × 7 mm, small tuberculate. Fl. Jun, fr. Nov.
Dense forests; 1100-2000 m. SE Xizang, Yunnan [Vietnam].