hansschlegelia hansschlegelia hansschlegelia is a genus of bacteria from the family of methylocystaceae. hansschlegelia scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: methylocystaceae genus: hansschlegeliaivanova et al. 2010 type species h. plantiphila species h. beijingensis h. plantiphila h. zhihuaiae