Conidiophores dark, usually highly branched and terminating in a brush-like complex bearing flask-shaped annellides. The colourless to dark 1- or 2-celled spores (conidia) are borne in chains from the tips of the annellides and usually have a flattened base where they were originally connected. Occurring in soil, dung, decaying plant debris, and house dust. Holomorphs: Chaetomium, Kernia, Microascus, Petriella. Ref: Morton and Smith 1963