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Mycologia Volume 114, 2022 - Issue 3
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Lichens

The circumscription and phylogenetic position of Bryonora (Lecanoraceae, Ascomycota), with two additions to the genus

Måns Svenssona Museum of Evolution, Uppsala University, Norbyvägen 16, UppsalaSE-752 36, SwedenCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0003-1664-8226View further author information
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Reidar Hauganb Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, OsloNO-0318, NorwayORCID Iconhttps://orcid.org/0000-0001-9925-661XView further author information
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Einar Timdalb Natural History Museum, University of Oslo, P.O. Box 1172 Blindern, OsloNO-0318, NorwayORCID Iconhttps://orcid.org/0000-0003-4524-0617View further author information
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Martin Westberga Museum of Evolution, Uppsala University, Norbyvägen 16, UppsalaSE-752 36, SwedenORCID Iconhttps://orcid.org/0000-0002-8346-0322View further author information
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Ulf Arupc Biological Museum, Lund University, Box 117, LundSE-221 00, SwedenORCID Iconhttps://orcid.org/0000-0001-6612-8099View further author information
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Pages 516-532 | Received 07 Dec 2021, Accepted 31 Jan 2022, Published online: 23 May 2022

Figures & data

Table 1. Sequence data used for the phylogenetic analysis, with GenBank accession numbers and voucher information

Figure 1. Majority-rule consensus tree based on a Bayesian MCMC analysis of mrSSU, LSU, ITS, MCM7, RPB1, and RPB2, showing the phylogenetic position of Bryonora in the Lecanoraceae. Branch support is given as posterior probability (PP)/bootstrap support (BS). Bootstrap support values are from a corresponding maximum likelihood analysis. Only BS values >70% are shown. GenBank accession numbers and voucher information are given in .

Figure 1. Majority-rule consensus tree based on a Bayesian MCMC analysis of mrSSU, LSU, ITS, MCM7, RPB1, and RPB2, showing the phylogenetic position of Bryonora in the Lecanoraceae. Branch support is given as posterior probability (PP)/bootstrap support (BS). Bootstrap support values are from a corresponding maximum likelihood analysis. Only BS values >70% are shown. GenBank accession numbers and voucher information are given in TABLE 1.

Figure 2. A–B. Bryonora castaneoides. A. Habit of form strongly associated with cyanobacteria and a thallus of Vestergrenopsis showing scattered thallus areoles “floating” on a carpet of Stigonema. Note apothecia in upper left hand corner that grow directly on the thallus of Vestergrenopsis (Du Rietz 889c, UPS L-115750). B. Habit of cracked areolate thallus and apothecia not strongly associated with cyanobacteria and cyanolichens (Westberg ULR223, UPS L-880215). Bars = 1 mm.

Figure 2. A–B. Bryonora castaneoides. A. Habit of form strongly associated with cyanobacteria and a thallus of Vestergrenopsis showing scattered thallus areoles “floating” on a carpet of Stigonema. Note apothecia in upper left hand corner that grow directly on the thallus of Vestergrenopsis (Du Rietz 889c, UPS L-115750). B. Habit of cracked areolate thallus and apothecia not strongly associated with cyanobacteria and cyanolichens (Westberg ULR223, UPS L-880215). Bars = 1 mm.

Figure 3. A–E. Bryonora microlepis. A–C. Habit of sterile thallus. Note the pale margin of the lobes and squamules. D–E. Section through squamule, stained in lactophenol cotton blue. A, C–E. Timdal 13869, O L-201412. B. Klepsland 625, holotype, O L-175933. Bars: A–C = 1 mm; D–E = 50 µm.

Figure 3. A–E. Bryonora microlepis. A–C. Habit of sterile thallus. Note the pale margin of the lobes and squamules. D–E. Section through squamule, stained in lactophenol cotton blue. A, C–E. Timdal 13869, O L-201412. B. Klepsland 625, holotype, O L-175933. Bars: A–C = 1 mm; D–E = 50 µm.

Figure 4. A–D. Bryonora castanea, B. pruinosa, B. rhypariza, and Miriquidica vicaria. A. Habit of B. castanea with apothecium margin more or less concolorous with disc (Kristinsson 24861, UPS L-996123). B. B. pruinosa with its apothecial margin typically darker than the disc (Hellbom & Hellbom s.n., UPS L-7552246). C. B. rhypariza differs from most species in the genus by a well-developed thallus and conspicuous thalline margin (Du Rietz s.n., UPS L-118215). D. Habit of Miriquidica vicaria, in this case rather similar to a Bryonora, but differing in a well-developed thallus where the margin of the areoles is often paler than the center and in exclusively having simple ascospores (Nordin 7784, UPS L-721906). Bars = 1 mm.

Figure 4. A–D. Bryonora castanea, B. pruinosa, B. rhypariza, and Miriquidica vicaria. A. Habit of B. castanea with apothecium margin more or less concolorous with disc (Kristinsson 24861, UPS L-996123). B. B. pruinosa with its apothecial margin typically darker than the disc (Hellbom & Hellbom s.n., UPS L-7552246). C. B. rhypariza differs from most species in the genus by a well-developed thallus and conspicuous thalline margin (Du Rietz s.n., UPS L-118215). D. Habit of Miriquidica vicaria, in this case rather similar to a Bryonora, but differing in a well-developed thallus where the margin of the areoles is often paler than the center and in exclusively having simple ascospores (Nordin 7784, UPS L-721906). Bars = 1 mm.
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