Ikaeria

Ikaeria is a genus of two species of crustose lichens in the family Teloschistaceae. Both species grow on twig bark of shrubs and trees. It was circumscribed in 2017 by lichenologists Sergey Kondratyuk, Dalip Kumar Upreti, and Jae-Seoun Hur, with Ikaeria aurantiellina assigned as the type species. This lichen was previously placed in the genus Caloplaca, but molecular phylogenetic analysis showed that it belonged in a lineage that was genetically distinct from that genus.^[1] Ikaeria serusiauxii was added to the genus in 2020.^[2]

Ikaeria
Apothecia of Ikaeria serusiauxii grown in full light, showing completely black margins
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Teloschistales
Family:	Teloschistaceae
Genus:	Ikaeria S.Y.Kondr., Upreti & Hur (2017)
Type species
Ikaeria aurantiellina (Harmand) S.Y.Kondr., Upreti & Hur (2017)
Species
I. aurantiellina I. serusiauxii

Ikaeria has a sister group relationship with genus Yoshimuria; both are in the subfamily Caloplacoideae of the Teloschistaceae. Ikaeria is named in honour of Swedish lichenologist Ingvar Kärnefelt.^[1]

Species

• Ikaeria aurantiellina (Harm.) S.Y.Kondr., Upreti & Hur (2017) – Canary Islands
• Ikaeria serusiauxii Sipman (2020)^[2] – Macaronesia and mainland Portugal

References

1. Kondratyuk, S.Y.; Lőkös, L.; Upreti, D. K.; Nayaka, S.; Mishra, G.K.; Ravera, S.; Jeong, M.-H.; Jang, S.-H.; Park, J.S.; Hur, J.-S. (2017). "New monophyletic branches of the Teloschistaceae (lichen-forming Ascomycota) proved by three gene phylogeny". Acta Botanica Hungarica. 59 (1–2): 71–136. doi:10.1556/034.59.2017.1-2.6. hdl:10447/414429.
2. Sipman, Harrie; Aptroot, André (2020). "Ikaeria serusiauxii, a new Caloplaca-like lichen from Macaronesia and mainland Portugal, with a lichen checklist for Porto Santo". Plant and Fungal Systematics. 65: 120–130. doi:10.35535/pfsyst-2020-0006.