PONTEDERIACEAE. 97 



Commewyne River near plant. Potribo: Splitgerber 481 H. L. B. 905, 



88—93 (fl- Jan.) 

 Upper Commewyne River: Focke 189 (fl. Sept.) named Pontederia 



eriantha Miq. in Linnaea XVII p. 60 and in Stirp. Surin. Select p. 



220; Focke in Tijdschrift Wis- en Natuurkund. Wetenschappen 



I. p 210. 

 Surinam: Dumortier without number in Hb. Rheno-Traject ; Wull- 



schlAgel 1648 ex Solms 1. c. 534. 

 Tropical and subtropical South- America. 



