penicillium ochrochloron penicillium ochrochloron penicillium ochrochloron is a species of fungus in the genus penicillium which produces penitrem a. penicillium ochrochloron scientific classification kingdom: fungi division: ascomycota class: eurotiomycetes order: eurotiales family: trichocomaceae genus: penicillium species: p. ochrochloron binomial name penicillium ochrochloronbiourge, p. 1923 type strain atcc 10540 cbs 357.48, frr 0926, imi 039806, mucl 38775, nrrl 926, qm 7604, thom 5710.1