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A genus of gram-positive, facultatively anaerobic, coccoid bacteria. Its organisms occur singly, in pairs, and in tetrads and characteristically divide in more than one plane to form irregular clusters. Natural populations of Staphylococcus are membranes of warm-blooded animals. Some species are opportunistic pathogens of humans and animals.

A genus or group of cocci in which the individuals are arranged in irregular masses resembling somewhat bunches of grapes.

Genus of micrococcus.

A genus of Bacteria, properly referable to Micrococcus, comprising non-motile cocci aggregated into irregular groups.

A genus or form of bacterial coccus.

A genus of Schizomycetes in which the spheres become arranged in irregular masses compared to clusters of grapes, of the family Coccaceae. The genera are described under Micrococcus.