石莲姜槲蕨 shi lian jiang hu jue

Polypodium propinquum Wallich ex Mettenius, Abh. Senckenberg. Naturf. Ges. 2: 120. 1856; Drynaria propinqua var. mesosora Christ.

Rhizome rather long creeping, terete, 1-2 cm in diam.; scales appressed, brown, peltate, 3-6 × 1-1.5 mm, margin dentate; fronds dimorphic, glabrous; basal fronds orbicular or ovate, 10-20 × 7-18 cm, pinnatifid up to 2/3 or more, margin irregularly dentate; foliage fronds stalked, stipe 8-20(-25) cm, slightly winged; lamina pinnatifid up to ca. 2 mm from costa, (20-)30-50(-60) × (12-)20-30 cm, apex not aborted; pinnae 7-15 pairs, margin dentate, apex acute. Sori in 1 regular row between costa and margin, close to costa. Spores verrucate and with spines.

Epiphytic or epilithic; 500-1900(-2800) m. Guangxi, Guizhou, Sichuan, Xizang, Yunnan [Bhutan, N India, Myanmar, Nepal, Thailand, Vietnam].