Erect, terrestrial herb, 20-60 cm tall; rhizome erect, with rufous scales. Petioles 20-40 cm long, darkened at base, sparsely covered with long, flattened or acicular scales, glabrate toward apex; blades dichotomously divided or lobed, the veins repeatedly dichotomous, each leaf segment fan-shaped, narrowly incised at apex, gradually tapered to base. Sporangia sessile on branches of compact, pectinate-pinnate, +/- reniform distal segments of blade. Foster 2795. Known from a single collection from the end of Chapman Trail. Elsewhere in Panama the species has been found in fertile condition essentially all year. Mexico to Brazil and Bolivia; West Indies. In Panama, known from tropical moist forest in the Canal Zone, Herrera, and Panama and from premontane wet forest in Panama.