Thelypteris retrorsa
Rhizome massive. Leaves monomorphic, fronds on average 1-2 m long; petiole 5-10 mm in diameter, densely scaly at the base, scales brown, ovate-lanceolate, glabrous or sparsely pilose; blade coriaceous, 1-pinnate-pinnatifid, with lower pinnae abruptly reduced, with 7-15 pairs of gland-like pinnae…
