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FOC | Family List | FOC Vol. 18 | Gesneriaceae | Petrocosmea

1. Petrocosmea nervosa Craib, Notes Roy. Bot. Gard. Edinburgh. 11: 272. 1919.

显脉石蝴蝶 xian mai shi hu die

Petiole 0.3-7 cm, pilose; leaf blade broadly ovate, rhombic-ovate, or broadly obovate to nearly orbicular, 1-5 X 1.2-5.2 cm, adaxially pilose, hairs both short and long, abaxially pilose, base broadly cuneate to nearly truncate or cordate, margin entire to repand-crenulate, apex obtuse to rounded; lateral veins abaxially conspicuous. Cymes 1(-4)-flowered; peduncle 3-11 cm, puberulent; bracts linear, 0.8-4 mm. Pedicel 0.6-3.2 cm. Calyx actinomorphic, 5-sect from base; segments equal, narrowly lanceolate, 2-4.5 X 0.8-2 mm, outside puberulent. Corolla blue-purple, outside appressed puberulent, inside glabrous; tube ca. 3 mm; adaxial lip ca. 5 mm, distinctly 2-lobed; abaxial lip ca. 5 mm. Filaments 0.7-1.2 mm, glabrous; anthers ovoid, 2-2.8 mm, beakless; staminodes 2 or 3. Pistil 7-7.5 mm; ovary 1-1.5 mm, sparsely puberulent. Style sparsely puberulent near base. Capsule 5-6.5 mm. Fl. Apr-May, Sep, fr. Sep, Jan, Apr.

* Rocks in forests; 300-3100 m. SW Sichuan (Huili Xian), NW Yunnan (Eryuan Xian, Yongsheng Xian).


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