formosa undariae formosa undariae formosa undariae is a gram-negative, aerobic and rod-shaped bacterium from the genus formosa. it has been isolated from a brown algae reservoir in south korea. formosa undariae scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: formosa species: f. undariae binomial name formosa undariaepark et al. 2013 type strain ws-my3