II. Characteristics
- Gram Positive branching filaments (fungus-like)
III. Organisms
- Actinomyces
- Actinomyces israelii (Actinomycosis)
-
Nocardia (Nocardiosis)
- Nocardia asteroides (Pulmonary Nocardiosis)
- Nocardia brasiliensis (Mycetoma)