顶花酸角杆 ding hua suan jiao gan

Anplectrum assamicum C. B. Clarke in J. D. Hooker, Fl. Brit. India 2: 546. 1879; Allomorphia subsessilis Craib; Diplectria assamica (C. B. Clarke) Kuntze; Medinilla spirei Guillaumin; Pseudodissochaeta assamica (C. B. Clarke) M. P. Nayar; P. subsessilis (Craib) M. P. Nayar.

Shrubs or scandent (scrambling) shrubs, 1-4 m tall. Branches 4-angled when young, later terete, glabrous. Leaves very shortly petiolate or sessile; leaf blade ovate, lanceolate-ovate, or elliptic, 10-21 × 3.8-11 cm, leathery, both surfaces minutely tuberculate or adaxially glabrous, abaxially sparsely strigose and furfuraceous, secondary veins 1 or 2 on each side of midvein, base oblique and cordate or rarely obtuse, margin entire or shallowly serrulate, apex acuminate. Inflorescences terminal, cymose paniculate, 15-30 cm. Pedicel 0.5-2 mm. Hypanthium cup-shaped, 3-4 mm, minutely tuberculate, margin slightly undulate. Calyx lobes inconspicuous. Petals 4, pink, broadly ovate, 3-4.5 × ca. 3.5 mm, basally slightly oblique, apex obtuse to subacute. Stamens 8, subequal; filaments ca. 3 mm; anthers lanceolate, ca. 4 mm; connective decurrent, inflated around base of anther and abaxially minutely spurred. Ovary ovoid, 4-celled, apex truncate and entire. Berry globular, 4.5-6 × 4-5 mm, apex truncate. Seeds shortly cuneate, small tuberculate. Fl. Apr-Jun, fr. Oct.

Sparse to dense forests, valleys, hillsides, streamsides, damp places, trailsides; 200-1300 m. Guangdong, Guangxi, Hainan, Xizang (Cona, Mêdog), Yunnan [India, Laos, Myanmar, N Thailand, Vietnam].