海南椴 hai nan duan

Basionym: Hainania trichosperma Merrill, Lingnan Sci. J. 14: 36. 1935; Pityranthe trichosperma (Merrill) Kubitzki.

Trees to 15 m tall, to 45 cm d.b.h. Bark gray-white, old branches dark brown, glabrous; branchlets densely gray-brown tomentose. Petiole 2.5-5.5 cm, hairy; leaf blade 6-14 × 4-10 cm, abaxially densely appressed gray-yellow stellate puberulent, adaxially glabrous or nearly so, base subcordate or trun-
cate, apex acuminate or acute. Panicles to 26 cm; peduncle densely gray-yellow stellate puberulent. Pedicel 5-7 mm, hairy. Calyx 3-4 mm, abaxially densely yellowish stellate puberulent. Petals yellow or white, 6-7 mm, oblanceolate, glabrous. Stamens glabrous; staminodes ca. 2.5 mm, apex pointed. Ovary ovoid, densely stellate puberulent; style simple. Capsule 2-2.5 cm, valves densely yellowish stellate puberulent abaxially, deeply furrowed and glabrous adaxially. Seeds ellipsoid, ca. 4 mm, densely yellow-brown villous. Fl. autumn, fr. winter.

● Open forests; 200-300 m. Guangxi, Hainan.