Phylogenetic tree of Penicillium section Exilicaulis based on ML analysis obtained by RAxML inferred from the combined tub2, cmdA, ITS, and rpb2 loci. Branch lengths are proportional to phylogenetic distance. Bootstrap support values/Bayesian posterior probability scores above 70%/0.95 are indicated on the nodes. Bold branches indicate bs/pp values 100/1. The tree is rooted to P. oxalicum CBS 219.30. The name in green is the strain of P. heteromorphum included in this study. T= Ex-type strain.