Reinaldo Aguilar 4246 Det. by: M. Grayum, VIII 1995 Phenology: 28 July 1995 08:28N 83:35W 10 m PUNTARENAS, GOLFITO P.N. Corcovado Península de Osa. Hierba acuática flotante.
Reinaldo Aguilar 4248 Det. by: M. Grayum, VIII 1995 Phenology: 28 July 1995 08:28N 83:35W 10 m PUNTARENAS, GOLFITO P.N. Corcovado Península de Osa. Hierba acuática flotante.
Michael Grayum 5893 Det. by: M. Grayum, VIII 1995 Phenology: 20 August 1985 09:23N 84:09W 0-5 m PUNTARENAS, AGUIRRE P.N. Manuel Antonio Faja Costeña del Valle de Parrita. Totally covering surgace of pond in open weedy site behind Playa Espadilla, at former mouth of Quebrada Camaronera.
Michael Grayum 10793 Det. by: M. Grayum, VIII 1995 Phenology: FL 7 August 1995 09:46N 83:23W 575-625 m CARTAGO, TURRIALBA Cordillera de Talamanca. Small population on surface of sluggish creek in site, among Heteranthera (MG 10792).
Garrett Crow 7549 Det. by: M. Grayum, VII 1995 Phenology: FL 15 August 1990 09:57N 83:49W 10 m PUNTARENAS, ESPARZA Faja Costeña de Puntarenas. Abundant. Free-floating among Typha. Some plants appear to be in flower.
Michael Grayum 8704 Det. by: E. Landolt, X 1991 Phenology: ST 3 September 1988 10:02N 83:26W 380 m LIMON, MATINA Z.P. Barbilla Cordillera de Talamanca. Floating on surface of unmapped woodland pond, toward margins. Fronds light green.