A phylogenetic survey of the ascomycete genus Arthrorhaphis (Arthrorhaphidaceae, Lecanoromycetes) including new species in Arthrorhaphis citrinella sensu lato Author Frisch, Andreas Yoshihito Ohmura, & & Mika Bendiksby & Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, 7491 Trondheim, &) A. bullata sp. nov., (&) A. bullata sp. nov., ( Author Ohmura, Yoshihito Håkon Holien & Department of Botany, National Museum of Nature and Science, Tsukuba, 305 - 0005, Japan &) A. catolechioides comb. & stat. nov., (&) A. catolechioides comb. & stat. nov., ( Author Holien, Håkon Yoshihito Ohmura, & & Mika Bendiksby & Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, 7491 Trondheim, &) A. bullata sp. nov., (&) A. bullata sp. nov., (& & Mika Bendiksby & Faculty of Bioscience and Aquaculture, Nord University, Box 2501, 7729 Steinkjer, Norway &) A. citrinella, (&) A. citrinella, ( Author Bendiksby, Mika Yoshihito Ohmura, & & Mika Bendiksby & Department of Natural History, NTNU University Museum, Norwegian University of Science and Technology, 7491 Trondheim, &) A. bullata sp. nov., (&) A. bullata sp. nov., (& Natural History Museum, University of Oslo, 0319 Oslo, Norway &) A. farinosa sp. nov., and (&) A. farinosa A. vulgaris comb. & stat. nov. A sixth phylogenetic clade from the Neotropics remains undescribed herein due Five circumarctic accessions of A. alpina s. l. form a genetically distinct but morphologically poorly understood alpina-vacillans clade, which we preliminarily name “ A. septentrionalis ”. Jointly, our multispecies coalescence single-locus (bGMYC) and multilocus (bPtP, bP & P) datasets, largely support our proposed species hypotheses Keywords integrative taxonomy; lichenicolous fungi; lichens; molecular phylogenetics; Ostropomycetidae; text TAXON 2022 2022-10-31 71 5 936 962 http://dx.doi.org/10.1002/tax.12718 journal article 305340 10.1002/tax.12718 a23abc26-09af-4eaf-9c14-bc5c8151cbb1 1996-8175 14047464

Table 2. Results from the bGMYC analyses for mrSSU, nrITS, and RPB1 gene loci.

	mrSSU	nrITS	RPB1
Likelihood null model	1231.294	1199.214	1160.623
Maximum likelihood GMYC model	1264.052	1230.614	1180.092
Likelihood ratio	65.51679	62.80141	38.93693
Result of likelihood ratio test	5.884182e-15***	2.309264e-14***	3.507144e-09***
Number of maximum likelihood clusters with confidence interval in brackets	10 (9–10)	15 (15–15)	12 (12–20)
Number of maximum likelihood entities with confidence interval in brackets	15 (14–15)	19 (19–20)	15 (15–30)
Threshold time	–0.002228722	–0.007533381	–0.002175746