The genus was reinstated in 2014 to contain foliicolous (leaf-dwelling) Opegrapha species, following a molecular phylogenetics-led reorganisation of the order Arthoniales.[4] Prior molecular work had already demonstrated that the foliicolous species, O. filicina and O. viridistellata, formed an independent lineage at the base of the Opegraphaceae.[5][6]
^Trevisan, V.B.A. (1880). "Sulle Garovaglinee, nuovo tribu di Collemacee". Rendiconti dell'Istituto Lombardo di Scienze e Lettere Scienze Biologiche (in Italian). 13 (3): 65–77.
^Frisch, Andreas; Thor, Göran; Ertz, Damien; Grube, Martin (2014). "The Arthonialean challenge: Restructuring Arthoniaceae". Taxon. 63 (4): 727–744. doi:10.12705/634.20.
^Ertz, Damien; Miadlikowska, Jolanta; Lutzoni, François; Dessein, Steven; Raspé, Olivier; Vigneron, Nathalie; Hofstetter, Valérie; Diederich, Paul (2009). "Towards a new classification of the Arthoniales (Ascomycota) based on a three-gene phylogeny focussing on the genus Opegrapha". Mycological Research. 113 (1): 141–152. doi:10.1016/j.mycres.2008.09.002. PMID18929650.
^Ertz, Damien; Tehler, Anders (2010). "The phylogeny of Arthoniales (Pezizomycotina) inferred from nucLSU and RPB2 sequences". Fungal Diversity. 49 (1): 47–71. doi:10.1007/s13225-010-0080-y. S2CID19367958.
^ abcdErtz, Damien (2020). "New insights into the systematics and phylogeny of the genus Fouragea (Arthoniales, Opegraphaceae)". Phytotaxa. 472 (2): 184–192. doi:10.11646/phytotaxa.472.2.8. S2CID229502496.
^Xue, Xian-Dong; Jiang, Shu-Hua; Ren, Qiang (2023). "Fouragea gyrophorica sp. nov. from China, with morphological and phylogenetic evidence". The Bryologist. 126 (2): 167–173. doi:10.1639/0007-2745-126.2.167. S2CID258127412.