(Argyrochosma incana)
Stem scales brown. Leaves 5--20 cm. Petiole black, 0.75--2 mm diam. Blade ovate, 3--4-pinnate proximally, leathery, abaxially covered by dense, white farina, adaxially glabrous; rachis rounded to slightly flattened adaxially. Pinna costae straight or nearly so, branches not arising from prominent angles. Ultimate segments articulate, dark color of stalks stopping abruptly at bases; segment margins plane, never concealing sporangia; veins obscure adaxially. Sporangia following secondary veins for most of length, containing 64 spores. 2 n = 54.