Atkinson, R. (2010). Flora of the Venezuelan Guayana. Volume 2. Pteridophytes, Spermatophytes; Acanthaceae-Araceae. Volume Editors: Paul E. Berry, Bruce K. Hoist & Kay Yatskievych. General Editors: Julian A. Steyermark, Paul E. Berry & Bruc. Edinburgh Journal of Botany, 55(2), 317-318. https://doi.org/10.1017/S0960428600002213