Watsoniomyces

Watsoniomyces
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lichinomycetes
Order:	Lichinales
Family:	Lichinaceae
Genus:	Watsoniomyces; D.Hawksw., M.Powell & T.Sprib. (2021)
Species:	W. obsoletus
Binomial name
	Watsoniomyces obsoletus; (Nyl.) D.Hawksw., M.Powell & T.Sprib. (2021)
Synonyms[1]
	Biatorina obsoleta (Nyl.) Arnold (1871); Lecidea obsoleta Nyl. (1865);

Watsoniomyces is a single-species fungal genus in the family Lichinaceae. It contains the saxicolous (rock-dwelling) crustose lichen Watsoniomyces obsoletus. The genus was circumscribed in 2021 by David Hawksworth, Mark Powell, and Toby Spribille to contain the species formerly known as Lecidea lichenicola. Molecular phylogenetic analysis showed that the species belonged to the family Lichinaceae in the order Lichinomycetes. The original material of Lecidea lichenicola was examined and determined to actually be a different species, Trapelia glebulosa. Further research showed that the earliest available name for this lichen is Lecidea obsoleta (originally described by William Nylander in 1865[2]), and so a modern collection was used to neotypify the species. Watsoniomyces obsoletus grows on chalk pebbles, and is the first known member of the Lichinomycetes that has an endolithic thallus.[3]

References

"Synonymy. Current Name: Watsoniomyces obsoletus (Nyl.) D. Hawksw., M. Powell & T. Sprib., in Díaz-Escandón, Hawksworth, Powell, Resl & Spribille, Fungal Biology 125: 501 (2021)". Species Fungorum. Retrieved 3 November 2022.
Nylander, W. (1865). "Addenda nova ad lichenographiam Europaeam". Flora (Regensburg). 48: 601–606.
Díaz-Escandón, David; Hawksworth, David L.; Powell, Mark; Resl, Philipp; Spribille, Toby (2021). "The British chalk specialist Lecidea lichenicola auct. revealed as a new genus of Lichinomycetes". Fungal Biology. 125 (7): 495–504. doi:10.1016/j.funbio.2021.01.007. PMID 34140146. S2CID 234008195.

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[Species_Fungorum_synonymy-1] "Synonymy. Current Name: Watsoniomyces obsoletus (Nyl.) D. Hawksw., M. Powell & T. Sprib., in Díaz-Escandón, Hawksworth, Powell, Resl & Spribille, Fungal Biology 125: 501 (2021)". Species Fungorum. Retrieved 3 November 2022.

[Nylander_1865-2] Nylander, W. (1865). "Addenda nova ad lichenographiam Europaeam". Flora (Regensburg). 48: 601–606.

[Díaz-Escandón_et_al._2021-3] Díaz-Escandón, David; Hawksworth, David L.; Powell, Mark; Resl, Philipp; Spribille, Toby (2021). "The British chalk specialist Lecidea lichenicola auct. revealed as a new genus of Lichinomycetes". Fungal Biology. 125 (7): 495–504. doi:10.1016/j.funbio.2021.01.007. PMID 34140146. S2CID 234008195.