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

Arthoniomycetes are a class (biology) 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".  
  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)".  

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