Cladosporium sphaerospermum

Cladosporium sphaerospermum is a cosmopolitan fungus that inhabits city buildings and the environment and because of its airborne nature it can move rapidly between locations, though the extent of this is lacking in research. It is found in hypersaline environments in Mediterranean and tropical climates, as well as soil and plant environments in temperate climates. The indoor presence of this fungus can signify there is a condensation problem within the building such as on bathroom walls and in kitchens. Cladosporium sphaerospermum has also been shown to inhabit paint films on walls and other surfaces as well as old paintings. This fungus is also able to grow on gypsum-based material with and without paint and wallpaper. Plant materials that are affected include citrus leaves and various other decaying plant leaves, on the stems of herbaceous and woody plants, on fruits and vegetables. The fungus has also been reported from wheat-based bakery items.