Potarophytum is a group of plants in the family Rapateaceae described as a genus in 1939.Maguire, Bassett. 1958. Memoirs of The New York Botanical Garden 10(1): 28-29 descriptions in Latin, commentary and geographic information in EnglishTropicos, Potarophytum Sandwith
The only known species is Potarophytum riparium, endemic to the Kaieteur National Park in the Potaro-Siparuni region of Guyana.Kew World Checklist of Selected Plant FamiliesFunk, V. A., P. E. Berry, S. Alexander, T. H. Hollowell & C. L. Kelloff. 2007. Checklist of the Plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contributions from the United States National Herbarium 55: 1–584
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