Punctularia atropurpurascens

Punctularia atropurpurascens, also known as violet crust or purple fuzz, is a species of fungus. Purple fuzz is a saprotrophic crust fungus. The preferred nutrient source of purple fuzz is the wood of deciduous trees. Purple fuzz is prone to guttation and weeps red. Purple fuzz appears to be a fairly widespread fungus capable of adapting to a variety of climates.