The commonly occurring wild plants of Canada. A flora for the use of beginners - Spotton, H. B. (Henry Byron), 1844 -1933 (W. J. Gage & Co, 1897)

Compagnie du Kasai : mission permanente d'études scientifiques - Wildeman, E. de (Emile), 1866 -1947 (Impr. A. Lesigne, 1910)

A companion for the Queensland student of plant life ; and Botany abridged - Bailey, Frederick Manson 1827 -1915 (Govt. Printer, 1897)

Comparative anatomy of the vegetative organs of the phanerogams and ferns - Bary, A. de (Anton), 1831 -1888 (Clarendon Press, 1884)

Comparative ecology and mimetic relationships of ithomiine butterflies in eastern Ecuador - Drummond, Boyce Alexander, 1946 - (1976)

A comparison of island and mainland pollination ecology - Spears, Edwin Eugene, 1953 - (1983)

Compendio della flora italiana; ossia, Manuale per la determinazione delle piante che trovansi selvatiche od inselvatichite nell'Italia e nelle isole adiacenti - Arcangeli, G. (Giovanni), 1840 -1921 (E. Loescher, 1882)

Compendium of plant disease and decay fungi in Canada, 1960-1980 - Ginns, J. H. (James Herbert) (Research Branch, Agriculture Canada, 1986)

Compilation of notes on the most important timber tree species of the Philippine Islands - Ahern, George Patrick, 1859 -1942 (1901)

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

Compositae newsletter - Naturhistoriska riksmuseet (Sweden). Dept. of Phanerogamic Botany. (Dept. of Botany, Ohio State University, 2000)

Compositae newsletter - Naturhistoriska riksmuseet (Sweden). Dept. of Phanerogamic Botany. (Dept. of Botany, Ohio State University, 2008)

Comprehensive catalogue of Queensland plants, both indigenous and naturalised. To which are added, where known, the aboriginal and other vernacular names; with numerous illustrations, and copious notes on the properties, features, &c., of the plants - Bailey, Frederick Manson 1827 -1915 (A. J. Cumming, government printer, 1909)

Concord area trees and shrubs - Angelo, Ray, 1948 - (Concord Field Station, Museum of Comparative Zoology, Harvard University, 1990)

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

Congrès international d'entomologie : [proceedings] (Hayez, 1977)

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Congrès international d'entomologie : [proceedings] (Hayez, 2008)

Congrès international d'entomologie : [proceedings] (Hayez, 2016)

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

Conservation Biology in Sub-Saharan Africa - Primack, Richard B. (Open Book Publishers, 2019)

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)

Conspectus florae Graecae - Halácsy, Eugen v., 1842 -1913 (Sumptibus Guilelmi Engelmann, 1902)

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

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

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Contribuicao a dendrometria das essencias florestais - Almeida, Guilherme de (Servico de Informacao Agricola, 1943)

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

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

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

A contribution to the botany of the Isle of Pines, Cuba, based upon the specimens of plants from that island contained in the herbarium of the Carnegie Museum under date of October, 1916 - Jennings, Otto E. (Otto Emery), 1877 -1964 (1917)

A contribution to the flora of Derbyshire being an account of the flowering plants, ferns, and Characeae found in the county - Painter, W. H. (George Bell, 1889)

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Contributions from the Gray Herbarium of Harvard University - Harvard University. Gray Herbarium. (Harvard University, 1929)

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

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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, 1912)

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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, 1903)

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, 1908)

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, 1912)

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, 1917)

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, 1925)

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, 1943)

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