Verbatim text: Horn, C. N. and R. R. Haynes. 1987. Typification of Pontederia and its Linnaean species names (Pontederiaceae). Taxon 36: 621–625.
Author: Horn, C.N., Haynes, R.R.
Year: 1987
Title: Typification of Pontederia and its Linnaean species names (Pontederiaceae)
Journal: Taxon
Volume: 36
Pages: 621–625