What is Stomatococcus? Rothia mucilaginosa (formerly Stomatococcus mucilaginosus) is a gram-positive aerobic coccus that was traditionally found as a cause of oral, cutaneous, and central nervous system infections in impaired hosts. What is Staphylococcus aureus morphology? Microscopic morphology. S. aureus cells are Gram-positive and appear in spherical shape. They are often in clusters resembling bunch […]