- Source: Buellia concinna
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.: 229–30 In North America, it prefers higher altitudes such as in the Sierra Nevada range.: 229–30 Lecideine apothecia are sessile on the thallus and are .2–.8 mm (0.0079–0.0315 in) in diameter with black discs. Lichen spot tests are C+ orange or pinkish, K+ yellow, KC− but CK+ orange, and it is UV+ yellow to ultraviolet light.: 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.
