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Arthonia radiata.jpg
Arthonia radiata magnified 9X, growing on Red Oak bark
Scientific classification e
Kingdom: Fungi
Division: Ascomycota
Subdivision: Pezizomycotina
(unranked): Leotiomyceta
(unranked): Dothideomyceta
Class: Arthoniomycetes
O.E. Erikss. & Winka 1997

Arthoniomycetes are a class of ascomycete fungi. It includes the single order Arthoniales. Most of the taxa in this class are tropical and subtropical lichens.


Phylogenetic analysis supports the monophyly of this class.[1] Dothideomycetes is a sister group.[2]


Taxa have apothecia, cup- or saucer- shaped ascoma in which the hymenium is exposed at maturity. These apothecia are bitunicate - with clearly differentiated inner and out walls.


  1. ^ Spatafora JW, Sung GH, Johnson D, et al. (2006). "A five-gene phylogeny of Pezizomycotina". Mycologia. 98 (6): 1018–28. doi:10.3852/mycologia.98.6.1018. PMID 17486977.
  2. ^ Lumbsch HT, Schmitt I, Lindemuth R, et al. (March 2005). "Performance of four ribosomal DNA regions to infer higher-level phylogenetic relationships of inoperculate euascomycetes (Leotiomyceta)". Mol. Phylogenet. Evol. 34 (3): 512–24. doi:10.1016/j.ympev.2004.11.007. PMID 15683926.

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