penicillium cainii penicillium cainii penicillium cainii is a fungus species of the genus of penicillium which was isolated from soil in korea. penicillium cainii scientific classification kingdom: fungi division: ascomycota class: eurotiomycetes order: eurotiales family: trichocomaceae genus: penicillium species: p. cainii binomial name penicillium cainiirivera, k.g.; seifert, k.a. 2011