Hymenophyllum Sm.

Involucre bivalvate (deeply or to the base) or bivalvate in the upper portion but obconic at the base Hymenophyllum

Margin of the lamina and the axes not clothed with branched hairs

Involucre bivalvate deeply or to the base

Fronds lanceolate to ovate or oblanceolate to narrowly obovate, 1–2-pinnate-pinnatifid, 2.5–7 cm long including the stipes. Sori solitary on the upper side of each primary pinna on short branches close to the main rhachis. Involucre slightly immersed in a short stalk, suborbicular, with a narrow base; the margin denticulate. Widespread. RF, growing on rocks and trees; also sometimes in drier areas Hymenophyllum cupressiforme

Fronds rhomboidal or palmate, 1-pinnate or 1-pinnate-pinnatifid, 1–2.7 cm long including the stipes. Sori terminal on the ultimate segments. Involucre rounded or oblong, not immersed; the margin minutely spinulose-denticulate. Blue Mts; Illawarra ranges, pass above Kiama. RF. Uncommon Hymenophyllum pumilum