1.
Atkinson R. 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 J. Bot. 2010;55(2):317-318. doi:10.1017/S0960428600002213