[not yet available online]
104006
J.C. Mutis, Draw. Roy. Bot. Exped. Granada: t. 1104 (1783)
312812 803581 Plagiocheilus frigidus Poeppig
E.F. Poeppig, Nov. Gen. Sp. Pl. (Poeppig), vol. 3 : t. 248 (1845) [Poeppig]
367802 803582 Plagiocheilus peduncularis (Kunth) Wedd. [80 532355 Hippia peduncularis Kunth]
H.A. Weddell, Chlor. Andina, vol. 1 : t. 14 (1855) [ Riocrieux]
