Polypodium triseriale Sw.
Family: Polypodiaceae
Polypodium triseriale image
Enrique Moreno & David Roubik  
Epiphyte; rhizome stout, short-creeping, with many fine, densely scaly rootlets, the rhizome scales ovate-acuminate, dull brown, often caudate-acuminate at apex. Leaves 1-pinnate, glabrous; petioles 8-25 cm long; leaflets strap-shaped, acute to acuminate at apex, obtuse at base, 8-37 cm long, 1.2-3.5 cm wide, the margins entire to minutely sinuate, the veins areolate. Sori round, in 2 or 3 rows beside midrib in areoles. Croat 8608, Foster 1932.