Phylogenetic relationships of Ophiocordyceps and related genera in the Ophiocordycipitaceae and phylogenetic placements of O. albastroma and O. nigristroma. The tree was inferred from the Bayesian Inference (BI) and the Maximum Likelihood (ML) analyses by concatenating nrSSU, nrLSU, rpb1, rpb2 and tef-1α datasets. The BI posterior probabilities (≥ 0.5) and the ML bootstrap values (≥ 50%) were indicated at the nodes. Those new species proposed in this study are in bold type.