Spores (conidia) are produced along the vegetative filaments by a swelling of the wall and subsequent isolating by a cross-wall. The conidia can be terminal on the filament or at various sites along its length. Chains of conidia may occur and are sometimes separated by empty cells. Most species are entirely colourless to yellow. In soil, dung, and decaying plant material. Some are able to decompose hair, hoofs, and leather. Holomorphs: Aphanoascus, Chaetomium, Pectinotrichum, Psathyrella, and others. Ref: Carmichael 1962; Van Oorschot 1980