Michael Grayum 8035 Det. by: M. Grayum, V 1988 Phenology: 29 January 1987 09:35N 82:36W 1 m LIMON, TALAMANCA R.N.V.S. Gandoca-Manzanillo Faja Costeña de Limón. Coarse ferns, a few plants growing in somewhat open, disturbed site at river's edge. Rhizome stout, erect.
Alexande Rojas 1467 Det. by: A. Rojas, IX 1994 Phenology: 15 September 1994 10:09N 84:09W 1900-1930 m HEREDIA, HEREDIA Cordillera Central. Planta terrestre, aorillas del camino, con luz abundante y materia orgánica nula o muy escasa.
Rafael Robles 1690 Det. by: M. Grayum, IV 1988 Phenology: FR 11 March 1988 10:26N 83:35W 40 m LIMON, POCOCI P.N. Tortuguero Llanura de Tortuguero. Helecho abundante en los potreros.
Michael Grayum 9995 Det. by: M. Grayum, X 1990 Phenology: 12 October 1990 10:26N 84:01W 50-100 m HEREDIA, SARAPIQUI Estación Biológica La Selva Llanura de San Carlos. A few plants growing in light-gap at CC 100. Rhizome stout, erect. Lamina 3- parted at summit of petiole, the lateral divisions pedately compound. Sterile collection.