Carl Ferdinand Appun
Carl Ferdinand Appun (24 May 1820, Bunzlau- July 1872, Guyana) was a German naturalist. On the recommendation of Alexander von Humboldt Appun was employed by Frederick William IV of Prussia as a botanist in Venezuela where excepting a one-year break in Germany, he spent ten years exploring the flora. After that he went to British Guayana, where he researched as a botanist on behalf the British government. He also visited parts of Brazil -the Rio Branco and Rio Negro on the Amazon to Tabatinga. During a visit in Germany (1868–1871) he published a set of essays  in different magazines . His best known work" Unter den Tropen" ("Under the Tropics") was at that time extremely popular. In 1871 he undertook a second exploration of Guyana, where he had an accident which led to his death. His last writings were essays about . Appun described many new plant species and is also known as an entomologist. Collections. The Museum für Naturkunde contains Diptera collected by Appun in Colombia.