German botanist and entomologist. Brother of Johann Friedrich Theodor (Fritz) Müller. Schoolteacher in Schwerin, 1854–5. Studied blind cave insects in Krain, 1855. Teacher of natural sciences at the Realschule in Lippstadt, 1855–83; became director of the school. After settling in Lippstadt, studied the local flora, in particular the mosses. CD’s Orchids directed Müller’s attention to the pollination and fertilisation of flowers, on which he published several papers and books.
Sources: Gilbert 1977, Krause 1883, Science 2 (1883): 487–8. (See the bibliography for full references to sources)