掌叶假瘤蕨 zhang ye jia liu jue

Basionym: Phymatodes digitata Ching, Contr. Inst. Bot. Natl. Acad. Peiping 2(3): 77. 1933; Crypsinus digitatus (Ching) Tagawa; Phymatopsis digitata (Ching) Ching; P. palmatifida Ching & P. S. Chiu; Phymatopteris digitata (Ching) Pichi Sermolli; Polypodium koi C. Christensen.

Rhizome ca. 4 mm in diam., densely scaly throughout; scales light brown, lanceolate, ca. 5 mm, margin entire, apex acuminate. Fronds monomorphic. Stipe castaneous, 2-10 cm, scaly at base, glabrous upward; lamina palmately 2-5-lobed, 5-9 × 5-9 cm, base rounded, margin entire or undulate. Lobes linear, central lobe usually longer than lateral lobes, 5-10 × 1-1.2 cm, apex obtuse or acute. Costa distinct, lateral veins and veinlets obscure. Lamina herbaceous, both surfaces glabrous, abaxial surface glaucous, adaxial surface green. Sori orbicular, close to margin, superficial.

● Epiphytic on tree trunks on hill tops; 1000-1400 m. Guangdong, Guizhou, Zhejiang.