小叶度量草 xiao ye du liang cao

Annuals 5--10 cm tall, villous on stems, petioles, leaf blades, and corolla lobes inside at base. Stems terete; internodes 1--3 mm. Interpetiolar stipules reduced to a transverse ridge. Petiole 3--5 mm; leaf blade ovate, 5--20 X 3--10 mm, base rounded to obtuse, apex obtuse, lateral veins 4--6 pairs. Inflorescences terminal, dichasial cymes, ca. 2 cm; peduncle to 1.5 cm, delicate; bracts and bracteoles lanceolate, 1--1.5 mm. Pedicel 2--3 mm. Calyx campanulate, lower 1/2 to 2/3 connate; lobes very narrowly ovate, ca. 1.5 X 1 mm. Corolla campanulate, ca. 3 mm, tube ca. 1.5 mm; lobes narrowly ovate, ca. 1.5 X 1 mm. Stamens inserted nearly at base of corolla tube; filaments ca. 0.5 mm; anthers ovate, apex adnate just below corolla mouth. Style ca. 0.5 mm, as long as ovary, free at base; stigma capitate. Fl. Apr.

* Open grassy area on limestone; ca. 1600 m. S Yunnan.