Michael Grayum 9530 Det. by: R. Moran, 1991 Phenology: 13 December 1989 08:58N 83:28W 100 m PUNTARENAS, OSA Valle del Térraba. Terrestrial fern on forested slope along Quebrada Benjamín; rhizome erect.
Gerardo Herrera 5828 Det. by: A. Rojas, II 1995 Phenology: 9 March 1993 09:14N 83:18W 500 m PUNTARENAS, BUENOS AIRES R.I. Ujarrás Cordillera de Talamanca. Terrestre, ripario. Escamas café- naranja. Soros café.
Jens Bittner 1707 Det. by: A. Rojas, V 1996 Phenology: 10 March 1993 09:17N 83:16W 1520 m PUNTARENAS, BUENOS AIRES R.I. Ujarrás Cordillera de Talamanca. Herb to 1.3 m.
Alvaro Fernández 591 Det. by: A. Rojas, II 1995 Phenology: 11 March 1993 09:17N 83:15W 1520 m PUNTARENAS, BUENOS AIRES R.I. Ujarrás Cordillera de Talamanca. Hierba. Soros café. Lámina de 1 m de largo. Orillas de quebrada.
Michael Grayum 9673 Det. by: R. Moran, 1991 Phenology: 16 February 1990 09:54N 84:17W 900 m SAN JOSE, MORA Z.P. El Rodeo Valle del Tárcoles. Terrestrial ferns, uncommon in primary forest understory. Rhizome erect. Petiolar scales reddish.
Michael Grayum 9586 Det. by: R. Moran, 1991 Phenology: 17 December 1989 09:56N 84:02W 1225 m SAN JOSE, MONTES DE OCA Valle Central. Coarse ferns, the rhizome erect; scattered on shaded slope at E side of complex. Scales reddish.
Michael Grayum 8586 Det. by: R. Moran 1988 Phenology: 22 May 1988 10:01N 84:16W 800 m ALAJUELA, ALAJUELA Valle del Tárcoles. Terrestrial in disturbed forest on steep slope. Rhizome stout, erect. Petiole scales reddish.