penicillium paxilli penicillium paxilli penicillium paxilli is an anamorph, saprophytic species of the genus penicillium which produces paxilline, paxisterol, penicillone, pyrenocine a, paspaline b and verruculogene. penicillium paxilli is used as a model to study the biochemistry of the indol-diterepene biosynthesis penicillium paxilli scientific classification kingdom: fungi division: ascomycota class: eurotiomycetes order: eurotiales family: trichocomaceae genus: penicillium species: p. paxilli binomial name penicillium paxillibainier, g. 1907 type strain atcc 10480, cbs 360.48, frr 2008, iam 7103, imi 040226, jcm 22546, ky 942, mucl 38787, nrr 2008, nrrl 2008, nrrl a-1200, qm 725