Catalogue of the flowering plants and gymnosperms of Peru = Catálogo de las angiospermas y gimnospermas del Perú - Brako, Lois, 1950 - (Missouri Botanical Garden, 1993)

Monographia Aquifoliacearum Pt. I - Loesener, Th. (Theodor), 1865 -1941 (1901)

Monographia Aquifoliacearum Pt. I - Loesener, Th. (Theodor), 1865 -1941 (1901)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1951)

The World List of Threatened Trees (1998)