Alvaro Fernández 501 Det. by: A. Rojas, I 1995 Phenology: 14 December 1992 09:52N 83:45W 1000 m CARTAGO, PARAISO Valle del Reventazón. Terrestre. Soros café. Orillas del camino.
Michael Grayum 9460 Det. by: M. Grayum, II 1990 Phenology: 16 May 1989 09:53N 83:39W 510-600 m CARTAGO, TURRIALBA Valle del Reventazón. Terrestrial fern in primary forest, the rhizome erect. Petiole and rachis canaliculate above.
Chris Ivey 125 Det. by: A. Rojas, I 1995 Phenology: 10 November 1990 10:23N 84:52W 1000-1150 m GUANACASTE, TILARAN Cordillera de Talamanca. Herb 0.75 m, forest understory. Stemless. Leaves 80 cm long, 21 leaflets per side.