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

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

Celebrating our 25th year with a sale of sales : catalog spring 1950 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Naughton Farms, 1950)

The century book of facts; a handbook of ready reference, embracing history, biography, government, law ... and useful miscellany - Ruoff, Henry Woldmar, 1867 - (King-Richardson, 1902)

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)

Cereal experiments at Dickinson, N. Dak - Clark, J. Allen (Jacob Allen), 1888 - (U.S. Dept. of Agriculture, 1914)

The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project - Illinois. Dept. of Energy; Natural Resources. (Ill. Dept. of Energy and Natural Resources, 1994)

A check list of plant rusts in Canada - Canada. Department of Agriculture. (Canada Dept. of Agriculture, 1956)

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)

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 armored scales (Homoptera: Diaspididae) of the conterminous United States - United States. Animal; Plant Health Inspection Service. Plant Protection; Quarantine Programs. (U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, 1982)

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)

Checklist of the vascular plants of Steamboat Mountain Research Natural Area - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1981)

Checklist of vascular plants of the Southern Rocky Mountain Region - Snow, Neil Wilton (2009)

Chrysanthemum and carnation cuttings : 1947 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Somerset Rose Nursery, Inc, 1947)

Chung-kuo chu yao chih wu t?u shuo - Keng, I-li, 1898 - (K'o hsüeh chʻu pan shê, 1959)

Circle West vegetation monitoring study - Montana. Energy Division. (Energy Division, Montana Dept. of Natural Resources and Conservation, 1982)

Citrus-fruit improvement : a study of bud variation in the Eureka lemon - Shamel, A. D. (Archibald Dixon), 1878 - (U.S. Dept. of Agriculture, 1920)

Classification and evolution of the Oraseminae in the old world, including revisions of two closely related genera of Eucharitinae (Hymenoptera: Eucharitidae) - Royal Ontario Museum. (Royal Ontario Museum, 1994)

Classification and management of USDI Bureau of Land Management's riparian and wetland sites in eastern and southern Idaho - United States. Bureau of Land Management. Idaho State Office. (Bitterroot Restoration Incorporated, 2002)

Classification of American Wheat Varieties - United States. Bureau of Plant Industry. (U.S. G.P.O, 1923)

Classification of American wheat varieties - Martin, John H. (U.S. Dept. of Agriculture, 1922)

Claytonia : newsletter of the Arkansas Native Plant Society - Arkansas Native Plant Society. (The Society], 2004)

Claytonia : newsletter of the Arkansas Native Plant Society - Arkansas Native Plant Society. (The Society], 2005)

Claytonia : newsletter of the Arkansas Native Plant Society - Arkansas Native Plant Society. (The Society], 2020)

Coefficient of conservatism rankings for the flora of Montana. report to the Montana Department of Environmental Quality, Helena, Montana. Part I - Montana. Department of Environmental Quality (Montana Natural Heritage Program, 2015)

Coefficient of conservatism rankings for the flora of Montana. Part II - Montana. Department of Environmental Quality (Montana Natural Heritage Program, 2016)

Coefficient of conservatism rankings for the flora of Montana. Part III - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2017)