Fig. 1 Bayesian 50 % consensus tree of 18 currently accepted Usnea species based on six concatenated loci, inferred by BEAST. Major groups and secondary chemistry are indicated right of the tree. Branch supports are given in circles: Black circles reflect strong support from both inferences (PP ≥ 95 % for BEAST and BP ≥ 70 % for RAxML), and gray circles strong support from BEAST only. Location and laboratory code are given in brackets. Scale bar shows the number of substitutions per site. Secondary metabolites: BAR barbatic acid, BMY baeomycesic

Published as part of Mark, Kristiina, Saag, Lauri, Leavitt, Steven D., Will-Wolf, Susan, Nelsen, Matthew P., Tõrra, Tiiu, Saag, Andres, Randlane, Tiina & Lumbsch, H. Thorsten, 2016, Evaluation of traditionally circumscribed species in the lichen-forming genus Usnea, section Usnea (Parmeliaceae, Ascomycota) using a six-locus dataset, pp. 497-524 in Organisms Diversity & Evolution (New York, N.Y.) 16 (3) on page 510, DOI: 10.1007/s13127-016-0273-7, http://zenodo.org/record/13173532