阔基角蕨 kuo ji jiao jue

Rhizome creeping or ascending; fronds caespitose. Fertile frond 40-80 cm; stipe brown when dry, shorter than lamina, base 2-3 mm in diam., scaly and hairy from base to apex with ovate or broadly lanceolate brown thin scales and short thin hairs; lamina 1-pinnate, narrowly elliptic-lanceolate, 30-50 × 10-23 cm, base slightly reduced, apex acuminate, pinnatilobate; pinnae 10-15 pairs, spreading or nearly so, well spaced, sessile, sickle-shaped or lanceolate, up to 12 × 2-3 cm, base slightly asymmetrical, truncate, wider than above, pinnatilobate to pinnatifid, apex acuminate; basal pinnae short, reflexed; pinna lobes broadly deltoid or subelliptic, subentire, obtuse at apex; veinlets up to 7 pairs, simple or occasionally forked. Lamina thinly herbaceous when dry, pale brown; rachis abaxially with sparse brown lanceolate scales and curly thin nodose hairs when young, then subglabrous. Sori elliptic or shortly linear, inframedial, close to midrib. Spores reniform in equatorial view, perispore with prominent, slightly rugate projections.

● Evergreen broad-leaved forests, beside streamlets; 1200-1900 m. Sichuan, Yunnan.