Roots proliferous. Base fronds rounded-reniform, 15.5–36 cm long, at least 15–26 cm wide; upper margin entire to slightly wavy, firmly appressed to substrate, soon becoming brown. Foliage fronds ascending, 23–90 cm or more long, to 60 cm wide; base cuneate, spreading out to a broad apex; distal one-third forked 1–5 times; ultimate segments oblong, 1–6 cm wide, dark green, glabrous or almost so. Sporangia covering most of the undersurface of ultimate segments of foliage fronds, frequently reaching apex and sometimes extending around sinus of the ultimate fork. Spores 40–52.5 µm long, 20–35 µm wide.
Home