Aspergillus forms fruiting bodies and septate filaments branching at acute angles
Candida grows as yeast forms, tandem arrays of elongated forms without hyphae (pseuhyphae) and true hyphae with septate
Actinomyces is a gram-positive filamentous or rod-shaped bacteria
Mucormycosis form non-septate, irregularly wide fungal hyphae with frequent right-angle branching. In addition mucormycosis frequently occur in diabetics and may spread from nasal sinuses to the orbit and brain giving rise to rhinocerebral mucormycosis.