This photo shows what can happen if water leakage goes on un-corrected for a while. This puddle of “mold” soup was found behind a washing machine which had been leaking for at least 6 months. Aureobasidium is one of several genera of “black yeasts”, characterized by mostly slow-growing, black, pasty colonies. The spores are produced in great masses along the filaments and occur on short lateral branches or pegs. When the spores are released they leave minute roughened scars. Exophiala species are similar but the spores do not leave rough scars as in Aureobasidium. Black yeasts occur in many habitats; some species of Exophiala may even cause human disease.
Photo taken by Dennis Robitaille of Able Home Inspection.