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

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

Catesbeiana : bulletin of the Virginia Herpetological Society - Virginia Herpetological Society. (The Society, 2002)

The causes and course of organic evolution - Macfarlane, John Muirhead, 1855 -1943 (The Macmillan Company, 1918)

The Century dictionary : an encyclopedic lexicon of the English language: prepared under the superintendence of William Dwight Whitney - Whitney, William Dwight, 1827 -1894 (Century Co, 1889)

A century of trees of Panama - Pittier, Henri, 1857 -1950 (1931)

The Chat - North Carolina Bird Club. (Carolina Bird Club, 1937)

Check list of Florida plants ex herbarium A. Fredholm. Series 2 - Fredholm, Adolf, 1863 -

Check list of plants housed in the Forest Service, Southern Region, Herbarium - United States. Forest Service. Southern Region. Herbarium. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 1982)

Checklist of CITES Species (1998)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (2001)

Checklist of CITES Species: a reference to the appendices to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (1996)

A checklist of New York State plants - Mitchell, Richard S., 1938 - (University of the State of New York, State Education Dept, 1986)

Checklist of the vascular flora of St. Catherines Island, Georgia - Jones, Samuel B., 1933 - (American Museum of Natural History, 1988)

Checklist of the vascular plants of Alabama from the John D. Freeman Herbarium and the University of Alabama Herbarium - Morton, Cynthia M. (Carnegie Museum of Natural History, 2002)

Checklist of the vascular plants of Powdermill Nature Reserve, Westmoreland County, Pennsylvania - Utech, Frederick H. (Carnegie Museum of Natural History, 1999)