Rhizome 1-2 cm thick, with many old persist stipes, creeping; scales soft, tuft, basifixed, 4-10 mm long, 0.5-1 mm wide, base auriculate, margin biserrate; fronds dimorphic; base fronds sessile, ovate to oblong, 6-15 cm long, 4-10 cm wide, base auriculate, pinnatilobed to 2/3 or more, lobes 5-7 pairs, margin slightly dentate; foliage fronds stalked, stipes 3-9 cm long, winged; laminae pinnatifid, 25-45 cm long, 12-18 cm wide, apex aborted or not; pinnae 7-13 pairs, spreading, lanceolate, 7.5-12 cm long, 1.5-3 cm wide, apex acute, margin shallowly dentate, glabrous or with few hairs; laminae sparsely hairy on both surfaces, especially along costa and veins. Sori in one stright row between costa and margin, close to costa, one row between lateral veins. Sporangia often with glandulars. Spores with verrucate.

Author(s): Wen, Jun

Rights holder(s): Wen, Jun

• Comment (0)