Adiantum formosum, R. Br. Lvs. 1-2 ft. long, two-thirds as broad, mostly tripinnate, with rough, scabrous stalks and rather small, deeply lobed lfts. 1/2-3/4 in. long, with rounded and toothed outer margins. Austral. G. 20:769.
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Adiantum pulverulentum, Linn. Lvs. often a foot long, with a large terminal pinna and several lateral ones, bipinnate; stalks purplish, hairy, as are also the rachises; lfts. 3/4-l in. long, 1/4in. wide, closely placed, the outer edge rounded or truncate. W. Indies.