Common trees of Puerto Rico and the Virgin Islands - Wadsworth, Frank H. (U.S. Dept. of Agriculture, Forest Service, 1964)

Comparative external pollen ultrastructure of the Araceae and putatively related taxa - Grayum, Michael Howard, 1949 - (Missouri Botanical Garden, 1992)

Compositae newsletter - Naturhistoriska riksmuseet (Sweden). Dept. of Phanerogamic Botany. (Dept. of Botany, Ohio State University, 1991)

Compositae newsletter - Naturhistoriska riksmuseet (Sweden). Dept. of Phanerogamic Botany. (Dept. of Botany, Ohio State University, 1996)

Congrès international d'entomologie : [proceedings] (Hayez, 1958)

Congrès international d'entomologie : [proceedings] (Hayez, 1992)

Congrès international d'entomologie : [proceedings] (Hayez, 2000)

Conservation and sustainable management of trees, report of the third regional workshop, held at Army Hotel, Hanoi, Viet Nam, 18-21 August, 1997 - WCMC (WCMC, 1997)

Conservation and sustainable use of medicinal plants in Ghana: conservation report - Abbiw, D. (Darwin Initiative, 2002)

Conservation and utilisation of the plant genetic resources of Mexico and Central America: Project Progress Report - WCMC (WCMC, 1995)

The Conservation Atlas of Tropical Forests: Africa (1992)

The Conservation Atlas of Tropical Forests: Asia and the Pacific (1991)

The Conservation Atlas of Tropical Forests: the Americas (1996)

Conservation of plant genes II : utilization of ancient and modern DNA - Adams, Robert P. (Missouri Botanical Garden, 1994)

Conservation of plant genes III : conservation and utilization of African plants - Adams, Robert P. (Missouri Botanical Garden Press, 1998)

Contribution to an evaluation of tree species using the new CITES Listing Criteria - WCMC (CITES, 1998)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1909)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1911)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1952)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1958)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1971)

Contributions from the New South Wales National Herbarium. Flora series (Govt. Pr, 1961)

Contributions from the New South Wales National Herbarium. Flora series (Govt. Pr, 1962)

Contributions from the New South Wales National Herbarium. Flora series (Govt. Pr, 1966)

Contributions from the New South Wales National Herbarium. Flora series (Govt. Pr, 1967)

Contributions from the New South Wales National Herbarium. Flora series (Govt. Pr, 1963)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1907)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1918)

Contributions from the Queensland Herbarium - Queensland Herbarium. (The Herbarium, 1972)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1905)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1912)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1914)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1919)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1920)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1931)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1928)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1957)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2000)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2003)