– Adelbert von Chamisso (1781–1838) Chaumeton – François Pierre Chaumeton (1775–1819) Cheel – Edwin Cheel (1872–1951) Chevall. – François Fulgis Chevallier (1796–1840) Chiov. – Emilio Chiovenda (1871–1941) Chleb. – Andrzej Chlebicki (1949–) Choisy – Maurice Choisy (1897-1966) Christm. – Gottlieb Friedrich Christmann (1752–1836) C.K. Spreng. – Christian Konrad Sprengel (1750–1816) Clarion – Jacques Clarion (1776–1844) C. Lawson – Charles Lawson (1794–1873) Clémençon – Heinz Clémençon (1935-) C.L. Hitchc. – Charles Leo Hitchcock (1902–1986) Clus. – Charles de L’Écluse (1525–1609) C. Morren – Charles Morren (1807–1858) Cockayne – Leonard C. Cockayne (1855–1934) Cogn. – Célestin Alfred Cogniaux (1841–1916) Cohn – Ferdinand Julius Cohn (1828–1898) Colebr. – Henry Thomas Colebrooke (1765–1837) Collinson – Peter Collinson (1694–1768) Comm. – Philibert Commerson (1727–1773) Cond. – Charles Marie de La Condamine (1701–1774) Cooke – Mordecai Cubitt Cooke (1825–1914) Corda – August Corda (1809–1849) Cordem. – Eugène Jacob de Cordemoy (1835–1911) Cornut – Jacques Philippe Cornut (1606–1651) Correns – Carl Correns (1864–1933) Coss. – Ernest Saint-Charles Cosson (1819–1889) Coville – Frederick Vernon Coville (1867–1937) C.P. Robin – Charles Philippe Robin C.