LICHENICOLOUS SPECIES OFARTHONIAONLOBARIACEAEWITH NOTES ON EXCLUDED TAXA |
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| Institution: | 1. CanmetMATERIALS, Natural Resources Canada, Hamilton, Ontario L8P 0A5, Canada;2. Department of Mechanical, Automotive, and Materials Engineering, University of Windsor, Windsor, Ontario N9B 3P4, Canada;3. Tempel Steel Co., Chicago, IL 60640-1020, USA;4. EEMMeCS Department, Metals Science and Technology Group, Ghent University, Ghent B9052, Belgium |
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| Abstract: | The species ofArthonias. lat. (Arthoniales,Ascomycotina) lichenicolous on species ofPseudocyphellariaand otherLobariaceaeare revised. Thirteen species are accepted, and eight species are described as new (all from the Southern Hemisphere):Arthonia badiaWedin & Hafellner,A. coriifoliaeWedin & Hafellner,A. flavicantisWedin & Hafellner,A. maculiformisWedin & Hafellner,A. minutaWedin & Hafellner,A. santessonianaWedin & Hafellner,‘A.’ semi-immersaWedin & Hafellner, andA. subaggregataWedin & Hafellner. Comparative notes on additional accepted species previously described fromPseudocyphellariaor otherLobariaceae(A. pelvetii,A. plectocarpoides,A. pseudocyphellariae,A. stictaria, andA. subconveniens) are included, and a key to theArthonia(and similar) species growing onLobariaceaeis presented. The coelomycete genusSubhysteropycnisWedin & Hafellner is described for the speciesS. maculiformansWedin & Hafellner, the macroconidal anamorph ofArthonia badia. The lecanoralean genusCorticiruptorWedin & Hafellner is described as new to accommodate the single lichenicolous speciesC. abeloneae(P. M. Jørg.) Wedin & Hafellner comb. nov., and the additional new combinationPlectocarpon linitae(R. Sant.) Wedin & Hafellner is proposed. The namesCelidium pelvetiiHepp,Sticta auratababortivaSchaer. andArthonia stictariaNyl. are lectotypified, and the typifications are discussed. |
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