Monographs Details: Thelypteris augescens (Link) Munz & I.M.Johnst.
Authority: Palacios-Ríos, Mónica & Cortés, G. 1990. New Pteridophyte Records for the State of Quintana Roo, Mexico. 42: 241-243.
Family:Thelypteridaceae
Discussion:

Specimens examined: Mpio. Othon P. Blanco, 2 km al N de Estero Franco, sobre la carretera Ucum La Union, Cabrera et al. 4536 (MEXU, MO, XAL); Mpio. Othon P. Blanco, Balneario El Palmar, a 1 km del poblado del Estero, carretera para La Union, selva alta perennifolia, 50 m, Calzada et al. 7100 (XAL).

Previously known from U.S.A. (southern Florida), Bahamas, Cuba, and Guatemala; its presence in Quintana Roo represents a new record for Mexico.