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Appressodiscus

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Genus of lichens

Appressodiscus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Ramalinaceae
Genus: Appressodiscus
Aptroot & L.A.Santos (2023)
Type species
Appressodiscus isidiobadius
Aptroot & L.A.Santos (2023)
Species

A. badius
A. isidiobadius

Appressodiscus is a small genus of lichen-forming fungi in the family Ramalinaceae. It comprises two species. The genus was circumscribed in 2023 by André Aptroot and Lidiane Alves dos Santos. Both species are found in Brazil, where they grow as corticolous (bark-dwelling) crustose lichens. Characteristics of the genus include flat apothecia (fruiting bodies), an excipulum with a prosoplectenchymatous tissue structure, eight-spored asci with an ocular chamber, and simple (non-septate) ascospores. Appressodiscus has a sister relationship with the genus Phyllopsora.

References

  1. Hyde, K.D.; Noorabadi, M.T.; Thiyagaraja, V.; He, M.Q.; Johnston, P.R.; Wijesinghe, S.N.; et al. (2024). "The 2024 Outline of Fungi and fungus-like taxa". Mycosphere. 15 (1): 5146–6239 . doi:10.5943/mycosphere/15/1/25. hdl:1854/LU-8660838.
  2. Aptroot, André; dos Santos, Lidiane Alves; Fraga Junior, Carlos Augusto Vidigal; da Silva Cáceres, Marcela Eugenia (2023). "Ramalea and the new genus Appressodiscus belong in the Ramalinaceae". The Bryologist. 126 (3): 360–366. doi:10.1639/0007-2745-126.3.360.


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