Biology:Dirina cretacea

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Short description: Species of lichen

Dirina cretacea
Scientific classification edit
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Arthoniomycetes
Order: Arthoniales
Family: Roccellaceae
Genus: Dirina
Species:
D. cretacea
Binomial name
Dirina cretacea
(Zahlbr.) Tehler (1983)
Synonyms[1]
  • Chiodecton cretaceum Zahlbr. (1899)

Dirina cretacea is a species of saxicolous (rock-dwelling), crustose lichen in the family Roccellaceae. Its distribution is largely in the eastern Mediterranean, and in Andalusia, Spain. It was formally described as a new species in 1899 by Alexander Zahlbruckner as a member of the genus Chiodecton. The type specimen was collected in Croatia.[2] Anders Tehler transferred it to the genus Dirina in 1983.[3] The lichen has a whitish-grey thallus (0.3–1.0 mm thick) lacking soralia, and a chalk-like medulla. Its ascomata have a circular outline and a diameter of up to 3.8 mm; the apothecial disc is also white grey with a layer of pruina, and is surrounded by a thalline margin. Ascospores measure 19–23 by 5–6 μm.[1]

References

  1. 1.0 1.1 Tehler, Anders; Ertz, Damien; Irestedt, Martin (2013). "The genus Dirina (Roccellaceae, Arthoniales) revisited". The Lichenologist 45 (4): 427–476. doi:10.1017/s0024282913000121. https://www.researchgate.net/publication/259433780. 
  2. Zahlbruckner, A. (1899). "Neue und seltene Flechten aus Istrien" (in de). Österreichische botanische Zeitschrift 69: 245. https://www.biodiversitylibrary.org/page/9574934. 
  3. Tehler, A. (1983). "The genera Dirina and Roccellina". Opera Botanica 70: 44. 

Wikidata ☰ Q21269746 entry