小花蛛毛苣苔 xiao hua zhu mao ju tai

Boea thirionii H. Léveillé, Repert. Spec. Nov. Regni Veg. 11: 301. 1912.

Herbs, rarely subshrubs. Stems to 3 cm, brown pannose. Leaves basal, rarely opposite, mostly crowded near stem apex; petiole 1-12 cm; leaf blade ovate to elliptic or obovate, 4-12 X 2.5-9 cm, papery, adaxially sparsely pubescent to glabrescent, abaxially rust-brown pannose, base often oblique, cuneate to subcordate, margin serrate or serrate-crenate to repand, apex acute to rounded; lateral veins 6-15 on each side of midrib. Cymes axillary; peduncle 3.5-26 cm, rust-brown pannose, glabrescent; bracts 2, elliptic, 1-1.5 X ca. 1 mm, outside rust-brown woolly to pannose. Pedicel 2-10 mm. Calyx 5-sect from base; segments lanceolate, 1-3 X 0.3-1 mm, outside sparsely puberulent. Corolla white, 4.5-5.2 mm, outside sparsely puberulent; tube 1-3 mm; adaxial lip lobes 1.2-2.5 X ca. 3 mm; abaxial lip lobes 2-2.8 X ca. 3 mm. Filaments 1-3 mm, glabrous; anthers 1.8-2 mm; staminodes apparently absent. Ovary 2-2.5 mm; grayish mealy. Style 3-5 mm, glabrous. Capsule spirally twisted, 0.6-1.2 cm, mealy. Fl. Jul.

* Shady and damp rocks; ca. 300 m. Guangxi (Tian'e Xian), Guizhou (Luodian Xian).

Paraboea thirionii is similar to and sometimes treated as a synonym of P. multiflora (R. Brown) B. L. Burtt.