1997 IUCN red list of threatened plants (1997)

Arnaldoa : revista del Herbario HAO - Herbario HAO. (Universidad Antenor Orrego de Trujillo, 2002)

Catalogue of the vascular plants of Ecuador = Catálogo de las plantas vasculares del Ecuador - González, Amada Pedroni. (Missouri Botanical Garden Press, 1999)

Diez anos de adiciones a la flora del Peru: 1993-2003 - Brako, Lois, 1950 - (Universidad Privada Antenor Orrego, 2004)

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1950)

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1950)

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1951)

Flora del Río Cenepa, Amazonas, Perú - Vásquez Martínez, Rodolfo (Missouri Botanical Garden Press, 2010)

Flora del Río Cenepa, Amazonas, Perú - Vásquez Martínez, Rodolfo (Missouri Botanical Garden Press, 2010)

Flora del Río Cenepa, Amazonas, Perú - Vásquez Martínez, Rodolfo (Missouri Botanical Garden Press, 2010)

Late Cretaceous and Cenozoic history of Latin American vegetation and terrestrial environments - Missouri Botanical Garden. (Missouri Botanical Garden Press, 2010)

The World List of Threatened Trees (1998)