Fouragea

Fouragea is a genus of lichen-forming fungi in the family Opegraphaceae.^[1][2] It has nine species.

Fouragea
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Arthoniomycetes
Order:	Arthoniales
Family:	Opegraphaceae
Genus:	Fouragea Trevis. (1880)
Type species
Fouragea filicina (Mont.) Trevis. (1880)

Taxonomy

The genus was originally circumscribed by Italian botanist Vittore Benedetto Antonio Trevisan de Saint-Léon in 1880,^[3] for the species Opegrapha filicina, first described by Camille Montagne. Several features distinguished this lichen from the usual, bark-dwelling Opegrapha species: its slender ascocarps, which are a result of its foliicolous lifestyle, the absence of a dark excipulum at the base, and the preference for Phycopeltis as a photobiont instead of Trentepohlia.

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]

Species

• Fouragea alba (Lücking) Ertz (2020)^[7]
• Fouragea filicina (Mont.) Trevis. (1880)
• Fouragea gyrophorica – China^[8]
• Fouragea heliabravoa (Herrera-Camp. & Lücking) Ertz (2020)^[7]
• Fouragea phyllobia (Nyl.) Zahlbr. (1923)
• Fouragea puiggarii (Müll.Arg.) Zahlbr. (1923)
• Fouragea tuxtlensis (Herrera-Camp. & Lücking) Ertz (2020)^[7]
• Fouragea vegae (R.Sant.) Ertz (2020)^[7]
• Fouragea viridistellata (Sérus., Lücking & Sparrius) Ertz & Frisch (2014)