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

Congrès Scientifiques de France (1841)

Die Coniferen und die Gnetaceen : eine morphologische Studie - Strasburger, Eduard, 1844 -1912 (H. Dabis, 1872)

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: the Americas (1996)

Conspectus regni vegetabilis per gradus naturales evoluti. Tentamen - Reichenbach, H. G. Ludwig (Heinrich Gottlieb Ludwig), 1793 -1879 (apud C. Cnobloch, 1828)

Conspectus regni vegetabilis : secundum characteres morphologicos praesertim carpicos in classes ordines et familias digesti, adjectis exemplis nominibusque plantarum usui medico technico et oeconomico inservientium = Uebersicht der Classen, Ordnungen und Familien des Gewächsreiches nach morphologischen Grundsätzen, unter besonderer Rücksicht auf den Fruchtbau, mit Angabe von Beispielen und von den in der Medicin, Technik und Oekonomie besonderswichtigen Pflanzen - Martius, Karl Friedrich Philipp von, 1794 -1868 (Joh. Leonhard Schrag, 1835)

Contract and general trade list of asters, zinnias, sweet peas, calendulas, larkspurs and other flower seeds : crop 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bodger Seeds, ltd, 1931)

Contract and general trade list of asters, zinnias, sweet peas, calendulas, larkspurs and other flower seeds : crop 1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bodger Seeds, Ltd, 1932)

Contract and general trade list of "California's choicest flower seeds since 1890" : crop 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bodger Seeds, Ltd, 1935)

Contract and general trade list of "California's choicest flower seeds since 1890" : crop 1933 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bodger Seeds, Ltd, 1933)

Contract and general trade list of "California's choicest flower seeds since 1890" : crop 1934 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Bodger Seeds, Ltd, 1934)

Contract and general trade list of "Merit" flower seeds : crop of 1940 to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1940)

Contract and general trade list of "Merit" flower seeds : crop of 1943 to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1943)

Contract and general trade list of "Merit" flower seeds : crop of 1948 to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1948)

Contract and general trade list of "Merit" flower seeds : crop of 1950, to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1950)

Contract and general trade list of "Merit" flower seeds : crop of 1939 to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1939)

Contract and general trade list of "Merit" flower seeds : crop of 1953 : to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1953)

Contract and general trade list of "Merit" flower seeds : crop of 1944 to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1944)

Contract and general trade list of "Merit" flower seeds : crop of 1945 to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1945)

Contract and general trade list of "Merit" flower seeds : crop of 1942 to the seed trade only - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Waller-Franklin Seed Co, 1942)

Contribución a la entomología cubana - Gundlach, Johannes Christoph, 1810 -1896 (G. Montiel, 1881)

Contribución a la flora del departamento del Cuzco / por Fortunato L. Herrera - Herrera, Fortunato L., 1875 -1945 (El Trabajo, 1921)

Contribuciones a la materia médica argentina - Domínguez, Juan A. (Juan Aníbal), 1876 -1946 (Talleres s. a. Casa J. Peuser, 1928)

Contribuciones a la flora de Bolivia - Museo Nacional de Bolivia. (Tall. tip.-lit. de J. M. Gamarra, 1910)

Contribution à la flore de la Guadeloupe - Mazé, H. 1818 -1892 (Imprimerie du gouvernement, 1892)

Contribution [I]-III to the coastal and plain flora of Yucatan - Millspaugh, Charles Frederick, 1854 -1923 (1895)

A contribution to our knowledge of seedlings - Lubbock, John, Sir, 1834 -1913 (K. Paul, Trench, Trübner, & co., ltd, 1892)

A contribution to the flora of Australia - Woolls, William, 1814 -1893 (F. White, 1867)

Contributions du Jardin botanique de Rio de Janeiro - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (L'Etoile du Sud, 1902)

Contributions du Jardin botanique de Rio de Janeiro - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (L'Etoile du Sud, 1907)

Contributions du Jardin botanique de Rio de Janeiro - Rodrigues, J. Barbosa (João Barbosa), 1842 -1909. (L'Etoile du Sud, 1901)

Contributions from the Botanical Laboratory - University of Pennsylvania. Botanical Laboratory. (University of Pennsylvania Press, 1892)

Contributions from the Botanical Laboratory of the University of Pennsylvania - University of Pennsylvania. Botanical Laboratory. (University of Pennsylvania Press, 1892)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1891)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1902)

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, 1937)

Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1945)

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

Contributions from the Herbarium of Columbia College - Columbia College (New York, N.Y.). Herbarium. (Columbia College, 1886)

Contributions from the Laboratory of Plant Genetics - Bussey Institution. ([s.n.], 1909)

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, 1909)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1912)

Contributions from the New York Botanical Garden - New York Botanical Garden (The Garden, 1915)

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

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1890)

Contributions from the United States National Herbarium - United States. National Herbarium. (Smithsonian Institution Press, 1891)

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, 1903)

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, 1968)

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, 1942)

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