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Lecanographaceae

From Wikipedia, the free encyclopedia

Lecanographaceae
Lecanographa dialeuca
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Arthoniomycetes
Order: Arthoniales
Family: Lecanographaceae
Ertz, Tehler, G.Thor & Frisch (2014)
Type genus
Lecanographa
Egea & Torrente (1994)

Lecanographaceae is a family of mostly lichens (also some lichenicolous fungi) in the order Arthoniales.[1] The family was circumscribed in 2014, prompted by a molecular phylogenetic-based restructuring of the Arthoniales.[2]

Description

Lecanographaceae species have a crustose thallus, and lack a cortex. Their photobiont partners are a green algae in the family Trentepohliaceae. The ascomata are narrow and furrowed (lirelliform) to rounded, and there is no margin around the thallus. The hymenial disc is often exposed, and is often pruinose. The excipulum (a layer of sterile tissue that contains the hymenium) is conspicuous, dark brown, usually closed, without a thalline margin. Interascal filaments are branched or anastomosed. The asci (spore-bearing cells) are cylindrical to club shaped. The ascospores are hyaline, spindle shaped (fusiform), and feature distosepta–thin septa of ascospores that lack a septal plate and are penetrated by cytoplasmic junctions. The cells divide in two equal parts during the spore septation.[2]

Genera

  • Alyxoria Ach. ex Gray (1821) – 12 spp.
  • Heterocyphelium Vain. (1927) – 2 spp.
  • Lecanographa Egea & Torrente (1994) – ca. 40 spp.
  • Mixtoconidium Etayo (1995) – 2 spp.
  • Phacographa Hafellner (2009) – 3 spp.
  • Plectocarpon Fée (1825) – ca. 40 spp.
  • Zwackhia Körb. (1855) – 6 spp.

References

  1. ^ Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, LKT; Dolatabadi, S; Stadler, Marc; Haelewaters, Danny; et al. (2020). "Outline of Fungi and fungus-like taxa". Mycosphere. 11: 1060–1456. doi:10.5943/mycosphere/11/1/8. hdl:10481/61998.
  2. ^ a b Frisch, Andreas; Thor, Göran; Ertz, Damien; Grube, Martin (2014). "The Arthonialean challenge: Restructuring Arthoniaceae". Taxon. 63 (4): 727–744. doi:10.12705/634.20.


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This page was last edited on 15 February 2024, at 15:51
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