大花石蝴蝶 da hua shi hu die

Petiole 0.2-8.5 cm, pilose; leaf blade elliptic or lanceolate to broadly ovate, 1.2-6.5 X 0.8-2.4 cm, adaxially sericeous, abaxially sparsely sericeous, hirsute along veins, base sometimes oblique, 1 side cuneate to broadly cuneate, other cordate to rounded or cuneate, sometimes peltate, margin shallowly crenate, apex acute to broadly acute; lateral veins conspicuous. Cymes 1-3-flowered; peduncle 2.5-5 cm, pilose; bracts linear, ca. 5 mm. Pedicel 1-1.4 cm. Calyx actinomorphic, 5-sect from base; segments equal, lanceolate, ca. 6 X 1.1 mm, outside appressed puberulent. Corolla blue, outside puberulent near base, inside glabrous; tube ca. 6 mm; adaxial lip 0.9-1.2 cm, distinctly 2-lobed; abaxial lip 1.3-1.5 cm. Filaments ca. 4 mm, puberulent; anthers oblong, ca. 2 mm, beakless; staminodes 3. Pistil 9-10 mm; ovary ca. 2 mm, pilose. Style pilose near base, glabrous above. Fruit unknown. Fl. Dec.

* Rocks of limestone hills; ca. 2000 m. SE Yunnan (Mengzi Xian).