penicillium tardochrysogenum penicillium tardochrysogenum penicillium tardochrysogenum is a filamentous species of fungus in the genus penicillium which produces penicillin, secalonic acids d and secalonic acids f. penicillium tardochrysogenum scientific classification kingdom: fungi division: ascomycota class: eurotiomycetes order: eurotiales family: trichocomaceae genus: penicillium species: p. tardochrysogenum binomial name penicillium tardochrysogenumfrisvad, houbraken & samson 2012 type strain cbs 132200, dto 149-b9, dto 149b9, ibt 30075