Botanical Museum leaflets, Harvard University - Harvard University. Botanical Museum. (Botanical Museum, Harvard University, 1943)

Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie - Engler, Adolf, 1844 -1930 (Schweizerbart [etc.], 1917)

Botanische Jahrbücher fur Systematik, Pflanzengeschichte und Pflanzengeographie - Engler, Adolf, 1844 -1930 (Schweizerbart [etc.], 1916)

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

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1959)

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1959)

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1959)

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1959)

Fieldiana Botany - Field Museum of Natural History. (Chicago Natural History Museum, 1961)