Flowchart of the simplified method for identification of Staphylococcus species. Symbols and abbreviations: FOS, alkaline phosphatase; CF, clumping factor; NOV, novobiocin susceptibility; DEF, desferrioxamine susceptibility; URE, urease; MAN, d-mannose; TRE, d-trehalose; XYL, d-xylose; +, positive test result; -, negative test result; s, susceptible; r, resistant. Staphylococcal species are numbered in boldface as follows: 1, S. epidermidis; 2, S. haemolyticus; 3, S. lugdunensis; 4, S. schleiferi subsp. schleiferi; 5, S. hominis subsp. hominis; 6, S. hominis subsp. novobiosepticus; 7, S. saprophyticus; 8, S. warneri; 9, S. cohnii subsp. cohnii; 10, S. cohnii subsp. urealyticus; 11, S. capitis subsp. capitis; 12, S. capitis subsp. urealyticus; 13, S. xylosus; 14, S. sciuri; and 15, S. aureus.