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Fronds with slender, glabrous stipes up to 60 mm long. Pinnae variable with straight or slightly convex flanks, up to 8 x 5 mm in floating fronds, smaller in terrestrial forms. Sporocarp: pedicels free, straight, slender, pilose at first; crowded, small, subcircular, pyriform, up to 2.5 x 1.5 mm, circular to elliptic in dorsiventral cross section, lateral ribs not apparent, raphe present, not very distinct, inferior tooth absent, superior tooth conical, short and obtuse or long and acute.
Aquatic perennial. Fronds with slender, glabrous stipes, up to 60 mm long; pinnae obovate or narrowly obovate to suborbicular, up to 8 x 6 mm, distal margins entire, adaxially glabrous, abaxially glabrous or variously pilose. Sporocarps 1 or 2 per leaf axil, very small, subcircular to squarish in lateral view, broadly ovate in dorsiventral cross-section, pilose, inferior tooth absent, superior tooth narrow and sharp or short and obtuse, lateral ribs not distinct.
Seasonal, aquatic perennial. Fronds with short or slender, mostly glabrous stipes, pinnae variable, mostly narrowly cuneate, pedicels free, straight, short or slender, pilose at first. Sporocarps crowded, small, subcircular, pyriform, lateral ribs not apparent, superior tooth developed, conical.
Aquatic perennial. Fronds with slender, glabrous stipes, pinnae variable, pedicels free, straight, slender, pilose at first. Null Sporocarps crowded, small, subcircular, pyriform, lateral ribs not apparent, superior tooth developed, conical.
