Isotipo:

FMB-23796. COLOMBIA. Vaupes: Mitú and vicinity, Río Parana-Pichuna, savanna at major rapids, 18-VII-1979 (fl,fr), J.L. Zarucchi 2493.

Referencia:

Zarucchi, J. J. 1991. A new species of Parahancornia Ducke (Apocynaceae: Plumerioideae: Carisseae) with comments on trhe genus. Novon 1(1): 37–42, f. 1–5.