Buellia concinna
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| Buellia concinna | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Caliciales |
| Family: | Caliciaceae |
| Genus: | Buellia |
| Species: | B. concinna
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| Binomial name | |
| Buellia concinna Th. Fr.
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Buellia concinna, the cinnabar button lichen, is a pale yellow to greenish or brownish bullate (bubble-like) to granular crustose lichen that prefers siliceous rock and cliff faces in temperate to subarctic, subalpine and alpine climates throughout the Northern Hemisphere.[1]: 229–30 [2] In North America, it prefers higher altitudes such as in the Sierra Nevada range.[1]: 229–30 Lecideine apothecia are sessile on the thallus and are .2–.8 mm (0.0079–0.0315 in) in diameter with black discs.[2] Lichen spot tests are C+ orange or pinkish, K+ yellow, KC− but CK+ orange, and it is UV+ yellow to ultraviolet light.[1]: 229–30 Secondary metabolites include arthothelin, isoarthothelin, 6-O-methylarthothelin, 4, 5-dichloronorlichexanthone, 4, 5-dichloro-6-O-methylnorlichexanthone, asemone, thiophanic acid, gyrophoric acid, lecanoric acid, and orsellinic acid.[2]