title: Four new species of penicillium isolated from the air.
abstract: Four new species of Penicillium Link ex Fries are described and illustrated. All of them but one have been isolated from the atmosphere in Madrid. Spain. They clearly differ from all species of the genus described so far and are, therefore, described and proposed as new taxa: Penicillium aurantio-flammiferum sp. nov., Penicillium gallaicum sp. nov., Penicillium granatense sp. nov., and Penicillium ilerdanum sp. nov.
mesh_terms: D000391:Air Microbiology; D010407:Penicillium / Q000145:classification / Q000166:cytology / Q000302:isolation & purification*; D013030:Spain