We ‘‘discovered’’ this new taxon when we tried to identify a herbarium specimen; M.D. Remmick 104 (SEL!), flowered in cultivation in Marie Selby Botanical Gardens (MSBG), which lacks any data of origin. We considered the possibility that this specimen could belong to a new species identified—but never published—by Robert Read: in his unpublished key, which he had made available through Elvira Gross, a new species ‘F’ was based on the living plant MSBG 1978-0905, which lacks any geographical data as well. Later on, we revised herbarium material and living plants collected by Werner Rauh: Rauh 20866 (HEID!, WU!), cultivated in the Botanical Gardens of Heidelberg (103751), Munich (1969/0378) and Osnabru¨ck (94-17-0050- 80). In addition to these studies, we had the opportunity to study the new species in its natural habitat, very close to the locality where Rauh already collected this species 40 years ago. —SeePeters 2009