Phylogenetic relationships among subgroups of T. viride. The cladogram is the single most parsimonious tree inferred by parsimony analysis based on rDNA sequences, including the ITS-1, 5.8S, and ITS-2 regions, using the branch-and-bound algorithm of PAUP 3.1.1 (164 steps, CI = 0.951; RI = 0.896; RC = 0.852). T. longibrachiatum and T. polysporum were used as outgroups. The numbers below the branches indicate the percentage at which a given branch was supported in 1,000 bootstrap replications. The total number of nucleotide changes assigned to each branch is shown above the branch.