Phylogenetic analysis of Trichoderma class II hydrophobins. The already published proteins from H. jecorina (HFB1-6) is marked in red. Branchess receiving significant support (> 50% bootstrap values) are indicated with a fat line. Significantly supported clades, which contain hydrophobins from at least 3 different species, are underplayed in grey. The vertical bars mark the clades termed HFB1/2, HFB3 and HFB4.