Dirina cretacea
| Dirina cretacea | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Arthoniomycetes |
| Order: | Arthoniales |
| Family: | Roccellaceae |
| Genus: | Dirina |
| Species: | D. cretacea
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| Binomial name | |
| Dirina cretacea (Zahlbr.) Tehler (1983)
| |
| Synonyms[1] | |
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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[edit]
- ^ a b Tehler, Anders; Ertz, Damien; Irestedt, Martin (2013). "The genus Dirina (Roccellaceae, Arthoniales) revisited". The Lichenologist. 45 (4): 427–476. doi:10.1017/s0024282913000121.
- ^ Zahlbruckner, A. (1899). "Neue und seltene Flechten aus Istrien". Österreichische botanische Zeitschrift (in German). 69: 245.
- ^ Tehler, A. (1983). "The genera Dirina and Roccellina". Opera Botanica. 70: 44.
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