大叶玉山假瘤蕨 da ye yu shan jia liu jue

Phymatodes echinospora Tagawa, Acta Phytotax. Geobot. 3: 95. 1934; Crypsinus echinosporus (Tagawa) Tagawa; Phymatopsis echinospora (Tagawa) H. Itô; Phymatopteris echinospora (Tagawa) Pichi Sermolli.

Rhizome 8-12 mm in diam., densely scaly throughout; scales dark brown at center, brown at margin, lanceolate, 6-7 × ca. 1 mm, rounded at base, margin entire, apex acuminate. Fronds monomorphic. Stipe straw-colored, 5-15 cm, glabrous; lamina pinnatisect, 15-20 × 10-15 cm, base truncate or cordate, margin notched. Lateral lobes 5-11 pairs, lowest pair not or only slightly deflexed, upper pairs spreading, linear-lanceolate, 5-10 cm × 8-18 mm, apex acuminate. Costa and lateral veins distinct, raised on both surfaces, veinlets obscure. Lamina herbaceous, both surfaces glabrous. Sori orbicular, large, medial or slightly closer to margin, sunken in cavities on abaxial surface and raised on adaxial surface.

● Epiphytic on tree trunks or on rocks; 1300-2400 m. Taiwan.