penicillium
Penicillium is a genus of mold fungi in the family Trichocomaceae, within the order Eurotiales of the phylum Ascomycota. Members are widespread in soils, on decaying vegetation, and in indoor environments, and they are commonly found on spoiled food products. They form gray-green to blue-green colonies with brush-like conidiophores that bear chains of conidia, giving the group its characteristic appearance. Reproduction is predominantly asexual, producing conidia on penicillus structures; many species also have sexual stages referred to as Eupenicillium or Talaromyces under older classifications.
The genus has broad ecological and practical significance. Penicillium chrysogenum (historically linked to P. notatum) is
Notable species can also affect stored grains or citrus fruits and are studied for their roles in