Acta Botánica Mexicana - Instituto de Ecología, A C. (Instituto de Ecología, A C, 2012)

Botany of the Maya area; miscellaneous papers I-XXI - Carnegie Institution of Washington (Carnegie Institution of Washington, 1936)

Gardens, wildlife densities, and subsistence hunting by Maya Indians in Quintana Roo, Mexico - Jorgenson, Jeffrey P. (1993)

Gardens, wildlife densities, and subsistence hunting by Maya Indians in Quintana Roo, Mexico - Jorgenson, Jeffrey P. (1993)

Das Pflanzenreich :regni vegetablilis conspectus - Engler, Adolf, 1844 -1930 (W. Engelmann, 1919)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1930)

Publication. Field Museum of Natural History Botanical series - Field Museum of Natural History. (Field Museum of Natural History, 1930)

The vegetation of Petén. With an appendix: Studies of Mexican and Central American plants–I - Lundell, Cyrus Longworth, 1907 -1994 (Carnegie Institution of Washington, 1937)

Wrightia - University of Texas at Dallas. (University of Texas at Dallas, 1981)