海南假瘤蕨 hai nan jia liu jue

Basionym: Phymatodes hainanensis Ching, Contr. Inst. Bot. Natl. Acad. Peiping 2(3): 68. 1933; Crypsinus hainanensis (Ching) Tagawa; Phymatopsis cunea Ching; P. hainanensis (Ching) Ching; Phymatopteris cunea (Ching) Pichi Sermolli; P. hainanensis (Ching) Pichi Sermolli; Polypodium echinosporum C. Christensen.

Rhizome ca. 3 mm in diam., densely scaly; scales dark brown in center, paler toward margins, ovate at peltate base, ca. 3 mm, margin entire, apex subulate. Fronds monomorphic. Stipe straw-colored, 8-13 cm, ca. 1 mm in diam., glabrous; lamina simple, ovate-lanceolate, 8-15 × 1.5-3 cm, widest around middle and gradually narrowed toward both ends, base cuneate, margin entire, apex acuminate. Lateral veins visible, veinlets obscure. Lamina papery, both surfaces glabrous. Sori orbicular, slightly near midrib and slightly raised on adaxial surface.

● Epiphytic on tree trunks or on rocks in forests; 500-600 m. Hainan, Yunnan.