P0NTEDER1ACEAK. 97 



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



88—93 (A- 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 I.e. 534. 

 Tropical and subtropical South-America. 



