Reproductive Morphology Figure 1. Bayesian 50% majority-rule consensus phylogeny of the Ascomycota based on rDNA. Branches with posterior probabilities $0.95 are bold. MP bootstrap values $80% are red. Notably long branches are dashed. Column E: Ecological character – leaf endophytic (green), leaf epiphytic (yellowish green), or non-leaf endophytic (blue). Column M: Morphological character – fully developed (blue) or small/reduced (green). Exemplars of ascomata morphology and ecology of fungi are shown (Scale bar = 10 mm): A. Tar-spots of Rhytisma americanum on maple leaves (G.W. Hudler/Cornell University). B. Cudonia sp. (Z.W. Ge/HKAS). C. Chlorencoelia versiformis on fallen wood (Ed Bosman/Connecticut Valley Mycological Society). D. Heyderia abietis on fallen needles (J.H. Petersen/MycoKey). E. Fabrella tsugae causing needle-blight of hemlock (Pennsylvania Department of Conservation and Natural Resources). F. Neolecta irregularis on mossy ground (J. Plischke/NAMA). G. Taphrina deformans causing leaf curl on a peach tree (J. Conrad/backyardnature.net). doi:10.1371/journal.pone.0004246.g001 PLoS ONE | www.plosone.org 3 January 2009 | Volume 4 | Issue 1 | e4246