Chaetomium spp.

Photos of Chaetomium spp. showing the pineapple shaped perithecia and under the higher magnification the lemon drop shaped spores.

Characteristics

Large ascomycetous fungus producing perithecia (17).

Allergen

Reported to be allergenic (7,17).

Growth Media

Found on a variety of substrates containing cellulose including paper and plant compost (17). Can produce an Acremonium-like state on fungal media (3).

Water Activity

0.90