Pneumococcus (S.pneumoniae) microscopy. Pneumococcus Gram-stain and cell morphology. Pneumococcus (Streptococcus pneumoniae) micrograph, appearance of Gram-stained pneumococcus in sputum under the microscope. S.pneumoniae microscopic picture.

Streptococcus pneumoniae (pneumococcus) micrograph. Sputum.
Morphology: Gram-positive, encapsulated, lanceolate diplococci in pairs forming short chains.