Epiphyte, usually 25-50 cm tall. Leaves1-pinnate; petiole and base of rachis atropurpureous and shiny;blades reduced toward apex and tapered to a slender tip; leaflets± oblong, very unequal at base, the lower edge straight tocurved, entire, the proximal margin nearly paralleling rachis, theupper and distal margins serrate, the upper margin infrequentlyauriculate, 2-6 cm long, 8-15 mm wide, the veins simple or1-forked. Sori several, linear-oblong, on upper side oflateral veins oblique to midrib, mostly on distal half ofleaflets; indusium thin. Croat 8475.
Occasional, on rocks in stream beds of larger ravines; locallyabundant.
Mexico to Paraguay and Venezuela; the Antilles.In Panama, known from tropical moist forest in the Canal Zone(BCI), Bocas del Toro, and Panama and from tropical wetforest in Colon.