紫柄假瘤蕨 zi bing jia liu jue

Basionym: Polypodium crenatopinnatum C. B. Clarke, J. Linn. Soc., Bot. 25: 99. 1889 ["crenato-pinnatum"]; Phymatodes crenatopinnata (C. B. Clarke) Ching; Phymatopsis crenatopinnata (C. B. Clarke) Ching; Phymatopteris crenatopinnata (C. B. Clarke) Pichi Sermolli; Pichisermollia crenatopinnata (C. B. Clarke) Fraser-Jenkins; Pichisermollodes crenatopinnata (C. B. Clarke) Fraser-Jenkins; Pleopeltis crenatopinnata (C. B. Clarke) Beddome; Polypodium connatum Christ; P. pseudoserratum Christ.

Rhizome ca. 2 mm in diam., densely scaly throughout; scales black at center, brown at margin, lanceolate, 2-3 mm, margin ciliate, apex acuminate. Fronds monomorphic. Stipe purplish or castaneous, 10-20 cm, glabrous; lamina pinnately (to partially bipinnately) divided almost to midrib, deltoid-ovate in outline, 5-20 × 5-10 cm, base truncate. Lateral lobes 3-8 pairs, far apart, 5-10 × 0.5-1.2 cm, base distinctly contracted, decurrent into very narrowly winged rachis, margin very shallowly crenate to irregularly incised or lobed, sometimes quite deeply lobed in more basal lobes, apex acute or obtuse. Veins distinct, veinlets usually obscure. Lamina papery, both surfaces glabrous. Sori orbicular or elliptic, medial or slightly nearer to costa.

Terrestrial in forests; 1900-2900 m. Guangxi, Guizhou, Hunan, Sichuan, Xizang, Yunnan [NE India].