kordia ulvae kordia ulvae kordia ulvae is a gram-negative, aerobic and rod-shaped bacterium from the genus kordia which has been isolated from the alga ulva. kordia ulvae scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: kordia species: k. ulvae binomial name kordia ulvaeqi et al. 2016 type strain sc2