Heinrich Simon Ludwig Friedrich Felix Rehm (20 October 1828, Ederheim – 1 April 1916, Munich) [1] was a German mycologist and lichenologist. He studied at the Universities of Erlangen, Munich and Heidelberg, earning his medical doctorate in 1852. During his career, he was a practicing physician in Dietenhofen (from 1854), Sugenheim (from 1857), and Windsheim (from 1871). In 1875, he became regional medical examiner in Lohr am Main.[2]
In 1861, the fungal genus Rehmia Kremp. 1861 was named after him by lichenologist August von Krempelhuber, it is now a synonym of Rhizocarpon.[3] Other mycological genera that were named after him include; Rehmiella G.Winter 1883, Neorehmia Höhn. 1902 now Trichosphaerella, Rehmiellopsis Bubák & Kabát 1910 now Delphinella, Rehmiodothis Theissen & H.Sydow, 1914, Discorehmia Kirschst. 1936 and Rehmiomycella E.Müll. 1962.[2][4]