Ocellomma

Ocellomma is a genus of lichen-forming fungi in the family Roccellaceae.[1] The genus was circumscribed in 2014 by Damien Ertz and Anders Tehler, following a molecular phylogenetic-based revision of the Roccellaceae.[2] The type species, O. picconianum, was originally named Lecania picconiana by Francesco Baglietto in 1862, described from specimens collected in Italy.[3] DNA-based phylogenetic analysis showed that it occupied a distinct genetic lineage, deserving of recognition as a new genus. The genus name Ocellomma alludes to the whitish rims on the small ascomata that contrast with the discs, giving them the appearance of small eyes.[2]

Ocellomma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Arthoniomycetes
Order: Arthoniales
Family: Roccellaceae
Genus: Ocellomma
Ertz & Tehler (2014)
Type species
Ocellomma picconianum
(Bagl.) Ertz & Tehler (2014)
Species

O. picconianum
O. rediuntum

Ocellomma rediuntum was proposed for addition to the genus in 2020. This lichen has an unusual disjunct distribution, occurring in both the coast of California, and in Australasia, including Kangaroo Island in South Australia, Victoria, and Tasmania. Both Ocellomma species are crustose and grow on bark.[4]

Species

  • Ocellomma picconianum (Bagl.) Ertz & Tehler (2014)[2]
  • Ocellomma rediuntum (Stizenb. ex Hasse) Kantvilas, Gueidan & Tehler (2020)[4]

References

  1. Wijayawardene, N.N.; Hyde, K.D.; Dai, D.Q.; Sánchez-García, M.; Goto, B.T.; Saxena, R.K.; et al. (2022). "Outline of Fungi and fungus-like taxa – 2021". Mycosphere. 13 (1): 53–453. doi:10.5943/mycosphere/13/1/2.
  2. 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 256059800.
  3. Baglietto, F. (1862). "Nuove specie del genera Lecania". Commentario della Società Crittogamologica Italiana. 1 (3): 126–128.
  4. Kantvilas, Gintaras; Gueidan, Cécile; Tehler, Anders (2020). "The strange case of Ocellomma rediuntum (Arthoniales: Roccellaceae) in Australia: a remarkably disjunct lichen". The Lichenologist. 52 (3): 187–195. doi:10.1017/s0024282920000092. S2CID 225889495.


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