Amycolatopsis nigrescens Groth et al., 2007 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Evol. Microbiol. 57::517 Classification genus Amycolatopsis species Amycolatopsis nigrescens Name Homonyms Amycolatopsis nigrescens Groth et al., 2007