ABSTRACT
Danaea tuomistoana A. Rojas (Marattiaceae) is described and illustrated as a new species endemic to Costa Rica; it differs from D. crispa Endres et Richb. by a truncate blade, and by the pinnae, which are 2/5-1/2 incised, cuneated at the base and with a flat margin. The range of D. erecta H. Tuomisto & R.C. Moran in Costa Rica is expanded with a new locality in Puntarenas (8 degrees 57'15[quot ] N-82 degrees 50'1[quot ] W, 1,500-1,580 masl).
Se describe e ilustra una especie nueva endémica de helecho de Costa Rica, Danaea tuomistoana A. Rojas (Marattiaceae), caracterizada porque las pinnas son incisas 2/5-1/2 entre la costa y el margen, y son cuneadas en la base. Se amplia el ámbito geográfico de D. erecta H. Tuomisto & R.C. Moran a Puntarenas, Costa Rica.