↑Fernández-Lucero, Mateo; Madriñán, Santiago; Campbell, Lisa (2016). «Morphology and Anatomy of Guacamaya superba (Rapateaceae) and Schoenocephalieae with Notes on the Natural History of the Flor de inírida». Harvard Papers in Botany. 21 (9): 105-123. doi:10.3100/hpib.v21iss1.2016.n9|acessodata= requer |url= (ajuda)