Bacteria are not fungi and are included here only because they will always be found where fungi occur. They form wet or slimy colonies, often will rather bright colours and unpleasant odours. The cells are nearly always very small and take a variety of shapes. Many bacteria are motile, swimming freely around a microscope slide or wet Petri plate. They must be handled with great care as many are pathogenic to man. Ref: Buchanan and Gibbons 1974