Gram - Positive Cocci

Staphylococcus - Clusters - Aerobic and Anaerobic growth

• S.aureus

•S.epidermidis

•S.saprophyticus

Streptococcus - Chains/pairs - Aerobic and Anaerobic growth

•S.pneumoniae

•S.pyogenes

•E.faecalis

Micrococcus - Squares - Aerobic and anaerobic growth

Peptococcus - Chains - Anaerobic

Peptostreptococcus - Chains - Anaerobic

Gram-Positive Bacilli

Bacillus - Sporing - Aerobic•B.anthracis

•B.cereus

Corynebacterium - Non-sporing - Aerobic and Anaerobic•C.diptheriae

Listeria - Non-sporing - Aerobic or Microaerophilic•L.monocytogenes

Lactobacillus - Non-sporing - Aerobic or Microaerophilic

Clostridium - Sporing - Anaerobic•C.difficile

•C.botulinum

•C.perfringens

Gram-Positive Bacilli

Propiomibacterium - Non-sporing - Anaerobic•P.acnes

Actinomyces - Branching - Anaerobic•A.israeli

Nocardia - Branching - Aerobic•N.asteroides