Alcaligenes ruhlandii (Packer and Vishniac 1955) Aragno and Schlegel 1977 (Approved Lists 1980);
Pseudomonas ruhlandii
authority:
"Pseudomonas ruhlandii" (Packer and Vishniac 1955) Davis in Davis et al. 1969;
Achromobacter ruhlandii (Aragno and Schlegel 1977) Yabuuchi et al. 1998 emend. Vandamme et al. 2013