滇黔石蝴蝶 dian qian shi hu die

Petiole 0.5-3.5 cm, spreading hirsute; leaf blade ovate to orbicular-ovate, 0.7-2(-2.6) X 0.5-1.5(-1.9) cm, adaxially pilose, abaxially densely pilose, base cordate to rounded, margin crenulate to denticulate, apex rounded to obtuse; lateral veins inconspicuous. Cymes 1(or 2)-flowered; peduncle 3-5 cm, pilose; bracts linear, 1-2 mm. Pedicel 3-14(-19) mm. Calyx actinomorphic, 5-sect from base; segments equal, narrowly lanceolate, 2.5-3 X 0.8-1.5 mm, outside puberulent. Corolla blue-purple, outside puberulent, inside glabrous; tube to 3 mm; adaxial lip ca. 3 mm, indistinctly 2-lobed; abaxial lip ca. 8.5 mm. Filaments 2-3 mm, rust-brown puberulent or glabrous; anthers oblong, ca. 2 mm, beakless; staminodes 2. Pistil 6-8 mm; ovary 1.5-2 mm, puberulent. Style glabrous. Capsule 3.5-5(-7) mm. Fl. and fr. May-Jun.

* Rocky, shaded cliffs in hilly regions; ca. 1000 m. Guizhou, SE Yunnan.

Lower Taxa

• Petrocosmea martinii var. leiandra W. T. Wang
• Petrocosmea martinii var. martinii