methylobacterium bullatum methylobacterium bullatum methylobacterium bullatum is a gram-negative, facultatively methylotrophic, strictly aerobic and non-spore-forming bacteria from the genus of methylobacterium which has been isolated from the moss funaria hygrometrica in the bergpark wilhelmshöhe near kassel in germany. methylobacterium bullatum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: methylobacteriaceae genus: methylobacterium species: m. bullatum binomial name methylobacterium bullatumhoppe et al. 2012 type strain dsm 21893, f3.2, lmg 24788 synonyms methylobacterium funariae, methylobacterium superadornatum