Psoronactis

Psoronactis is a monotypic fungal genus in the family Roccellaceae. It contains the single species Psoronactis dilleniana, a saxicolous (rock-dwelling), crustose lichen. This species was first described in 1799 by Swedish lichenologist Erik Acharius as Lichen dillenianus.[2] The taxon was shuffled to several genera in the 1800s as different authors had different opinions on how to classify the species;[1] in more modern times, it was transferred to genus Lecanographa in 2013.[3] Psoronactis was circumscribed in 2014 by Damien Ernst and Anders Tehler, following molecular phylogenetic analysis and revision of the Roccellaceae that showed the species occupied a distinct lineage in the family. The genus name alludes to the lichen products present in its thallus: psoromic acid and 2'-O-demethylpsoromic acid. It is these compounds that differentiate it chemically from the similar genus Lecanactis.[4]

Psoronactis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Arthoniomycetes
Order: Arthoniales
Family: Roccellaceae
Genus: Psoronactis
Ertz & Tehler (2014)
Species:
P. dilleniana
Binomial name
Psoronactis dilleniana
(Ach.) Ertz & Tehler (2014)
Synonyms[1]
List
  • Lichen dillenianus Ach. (1799)
  • Lecidea dilleniana (Ach.) Ach. (1803)
  • Lichen peltatus * dilleniana (Ach.) Lam. (1813)
  • Lecidea contigua * dilleniana (Ach.) Torss. (1843)
  • Coniangium dillenianum (Ach.) A.Massal. (1853)
  • Lecanactis dilleniana (Ach.) Körb. (1855)
  • Lecidea farinosa * dilleniana (Ach.) Nyl. (1861)
  • Opegrapha dilleniana (Ach.) Almq. (1869)
  • Lecidea farinosa subsp. dilleniana (Ach.) Cromb. (1870)
  • Lecanographa dilleniana (Ach.) Hafellner & Obermayer (2013)

References
  1. "Synonymy. Current Name: Psoronactis dilleniana (Ach.) Ertz & Tehler, in Ertz, Tehler, Irestedt, Frisch, Thor & van den Boom, Fungal Diversity 70: 46 (2014) [2015]". Species Fungorum. Retrieved 12 November 2022.
  2. Acharius, Erik (1799). Lichenographiae Sueciae Prodromus (in Latin). Linköping: D.G. Björn. p. 57.
  3. Obermayer, Walter (2013). "Dupla Graecensia Lichenum (2013, numbers 801–960)" (PDF). Fritschiana. 76: 1–45 [20].
  4. Ertz, Damien; Tehler, Anders; Irestedt, Martin; Frisch, Andreas; Thor, Göran; van den Boom, Pieter (2014). "A large-scale phylogenetic revision of Roccellaceae (Arthoniales) reveals eight new genera". Fungal Diversity. 70 (1): 31–53. doi:10.1007/s13225-014-0286-5. S2CID 7994392.


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