(described by (Bodin) Guiart and Grigorakis in 1928)
Microsporum gypseum grows relatively rapidly and matures in 6 to 10 days. The texture of the colony is powdery to granular and the color is beige to cinnamon brown. From the reverse, it is yellow to brownish red.
It produces septate hyphae, macroconidia and microconidia. Macroconidia are abundant, fusiform and symmetrical in shape with rounded ends. The walls of macroconidia are thin and rough and they contain 3-6 cells. Microconidia are moderately numerous in number, club-shaped and located along the hyphae.
Hair perforation test is positive.