Main Page | See live article | Alphabetical index Staphylococci Scientific classification Domain: Bacteria Division: Firmicutes Order: Bacillales Family: Staphylococcaceae Genus: Staphylococcus Species   S. aureus   S. capitis   S. epidermidis   S. haemolyticus   S. hominis   S. lugdunensis   S. saprophyticus   S. warneri   S. xylosus Staphylococcus is a genus of gram-positive bacteria. Under the microscope they appear round (cocci), and form in grape-like clusters (staphyl is Greek for bunch of grapes). There are many species of staphylococci, most are completely harmless, and reside normally on the skin. One harmful species is Staphylococcus aureus, which can infect wounds. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.