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

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1909)

Contributions from the Osborn Botanical Laboratory - Yale University. Osborn Botanical Laboratory (Osborn Botanical Laboratory, Yale University, 1916)

Contributions from the Osborn Botanical Laboratory - Yale University. Osborn Botanical Laboratory (Osborn Botanical Laboratory, Yale University, 1923)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1897)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1901)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1900)

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, 1906)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1909)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1915)

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, 1925)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1940)

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, 1974)

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)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2004)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2005)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 2007)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1939)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1982)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1993)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1995)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 1997)

Contributions from the University of Michigan Herbarium - University of Michigan. University Herbarium. (University Herbarium, University of Michigan, 2001)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1960)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1962)

Contributions in science - Los Angeles County Museum of Natural History. (The Museum, 1985)

Contributions to the botany of the Yukon Territory - Rydberg, Per Axel, 1860 -1931 (1901)

Contributions to the botany of Vermont - Middlebury College. (Botanical Dept., University of Vermont, 1898)

Contributions to the paleobotany of Peru, Bolivia and Chile; five papers - Berry, Edward Wilber, 1875 -1945 (The John Hopkins Press, 1922)

Contribuzioni alla flora fossile dei terreni terziarii della Liguria - Squinabol, Senofonte, 1861 -1941 (Tip. del R. Istituto Sordo-Muti, 1889)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1964)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Corpus florarum provincialium Sueciae. I. Floram scanicam - Fries, Elias, 1794 -1878 (Typis Palmblad, Sebell & Co, 1835)

The Cottage gardeners' dictionary : describing the plants, fruits, and vegetables desirable for the garden, and explaining the terms and operations employed in their cultivation ; with an alphabetical list of synonymes - Johnson, George William, 1802 -1886 (Henry G. Bohn, 1863)

The cottage gardeners' dictionary. Describing the plants, fruits, and vegetables desirable for the garden, and explaining the terms and operations employed in their cultivation - Johnson, George William, 1802 -1886 (W. S. Orr, 1852)

Cranberries; : the national cranberry magazine (Taylor Pub. Co. [etc.], 1949)

Croisière océanographique : accomplie à bord de la Belgica dans la Mer du Grönland, 1905 - Gerlache de Gomery, A. de commandant, (Adrien), 1866 -1934 (C. Bulens, 1907)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1987)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1990)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1994)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1997)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1998)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 1999)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2000)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2001)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2007)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2011)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2012)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2013)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2015)

Crossosoma - Southern California Botanists. (Southern California Botanists, Rancho Santa Ana Botanic Garden, 2016)

Cryptogamae vasculares Quitenses :adiectis specibus in aliis provinciis ditionis Ecuadorensis hactenus detectis - Sodiro, Luis, 1836 -1909 (Typis Universitatis, 1893)