candidatus caballeronia calva candidatus caballeronia calva "candidatus caballeronia calva" is a bacterium from the genus caballeronia and the family burkholderiaceae. "candidatus caballeronia calva" is an endosymbiont of psychotria calva. "candidatus caballeronia calva" scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: burkholderiaceae genus: caballeronia species: "ca. c. calva" binomial name "candidatus caballeronia calva" synonyms "candidatus burkholderia calva" van oevelen et al. 2004