贡山球兰 gong shan qiu lan

Centrostemma yunnanense P. T. Li (1990), not Hoya yuennanensis Handel-Mazzetti (1936); Hoya gongshanica P. T. Li.

Shrubs glabrous except for branchlets and petiole. Stems climbing, to 2 m. Petiole 2-3 mm, setose; leaf blade oblong or oblong-elliptic, 6.5-10 × 2-3 cm, papery, base obtuse, apex acuminate to caudate-acuminate; midvein elevated; lateral veins 5-7 pairs, conspicuous adaxially, obscure abaxially. Pseudumbels terminal, ca. 5 cm; peduncle ca. 1 cm. Pedicel ca. 3 cm. Sepals ca. 2 × 3 mm, hidden by reflexed corolla. Corolla white, 1.5-1.8 cm in diam., strongly reflexed; tube shorter than lobes; lobes lanceolate, ca. 1.2 cm × 3.5 mm. Corona lobes ovoid-lanceolate, 4-5 mm, fleshy, erect, base rounded, margin revolute, apex long caudate and exceeding gynostegium, tails 2-2.5 mm. Fl. Aug.

* Broad-leaved evergreen forests; ca. 1400 m. Yunnan (Gongshan).