Corynebacterium minutissimum is a species of Corynebacterium associated with erythrasma, a type of skin rash. It can be distinguished from similar-appearing rashes by exposing the area to the light of a Wood's lamp; C. minutissimum produces porphyrins that fluoresce coral-red.
References
External links Type strain of Corynebacterium minutissimum at BacDive - the Bacterial Diversity Metadatabase