Fusarium conidia

Fusarium is a fungal genus of asexual ascomycetes that is a soil saprobe and an important plant pathogen. It normally is found in the soil but can be introduced indoors. Indoors it is often found in the bathroom or other areas with moisture. Some species of Fusarium produce mycotoxins.

Fusarium macroconidia are multicellular with 3 to 5 transverse septa. These spores are colorless and sickle-shaped (canoe-shaped) with a slightly curved basal cell called a foot cell. Many Fusarium species also form small, oval, colorless microconidia. The images below only show the macroconidia. The images on the right show the macroconidia stained with acid fuchsin.