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15 Cards in this Set

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Small to medium; opaque, convex; nonhemolytic; wide variety of pigments ( white, tan, yellow, orange, pink); catalase positive; coagulase negative; oxidative
Micrococcus ssp.
Usually only aerobic- pairs, tetrads, and clusters
Round, smooth, convex, glistening, opaque, entire edge, butyrous; Catalase-positive, fermentative, salt-tolerant
Staphylococcus spp.
Facultative anaerobe, usually in clusters
Small to medium; translucent, gray-white colonies; most colonies hemolytic; slime-producing strains are extremely sticky and adhere to agar surface; coagulase-negative; grows on mannitol but doesn't ferment, positive growth on CNA, non-hemolytic on BAP
Staphylococcus epidermidis
Facultative anaerobe, usually in clusters
Medium; smooth, butyrous and opaque; beta-hemolytic
Staphylococcus haemolyticus
Facultative anaerobe, usually in clusters
Medium to large; smooth, butyrous and opaque; may be unpigmented or cream-yellow-orange
Staphylococcus hominis
Facultative anaerobe, usually in clusters
Medium to large; smooth, glossy, entire edge with slightly domed center; unpigmented or cream to yellow-orange
Staphylococcus lugdunensis
Facultative anaerobe, usually in clusters
Large; entire, very glossy, smooth, opaque, butryous, convex; usually white but colonies can be yellow or orange; non-hemolytic on BAP, coagulase-negative, DNase-negative
Staphylococcus saprohyticus
Facultative anaerobe, usually in clusters
Large; slightly convex, entire, smooth, glossy, opaque; usually nonpigmented
Staphylococcus intermedius
Facultative anaerobe, usually in clusters
Medium to large; smooth, entire, slightly raised, translucent; most colonies pigmented cramy yellow; most colonies beta-hemolytic; Coagulase-positive; ferments mannitol; DNase positive, beta-lactamase-positive
Staphylococcus aureus
Facultative anaerobe, usually in clusters
Grayish-white, transparent to translucent, matte or glosssy; large zone of beta-hemolysis. Catalase-negative, wide zone, PYR-positive
Group A beta-hemolytic Streptococci
Facultative anaerobes, require enriched media, in chains
Larger than group A, translucent to opaque; flat, glossy; narrow zone of beta hemolysis; some strains non-hemolytic, bull's eye colonies, wide zone; Sodium hippurate and CAMP-positive
Group B beta hemolytic Streptococci; Strep agalactiae
Facultative anaerobe, in chains
Grayish-white, glistening; wide zone of beta hemolysis
Group C beta hemolytic Streptococci
Facultative anaerobes, in chains
Round, taranslucent, glistening, dome-shaped when young. Central depression with age. Encapsulated. Bile solubility positive. Strains are mucoid. Alpha-hemolytic
Streptococcus pneumoniae
Facultative anaerobe, Lancet-shaped, usually in pairs, but may be single or in short chains
Usually alpha hemolytic, but can be nonhemolytic
Veridans Streptococci
Facultative anaerobe, in chains
Usually nonhemolytic. May be alpha or beta hemolytic. PYR- positive. NaCl broth
Entercoccus ssp.
Facultative anaerobe, In chains