Basionym Name:Lichen ambiguus Wulfen, in Jacquin, Collnea bot. 4: 239 (1791)
Homotypic synonyms:Squamaria ambigua Hoffm., Descr. Adumb. Plant. Lich. 2(3): 56, tab. XL, fig. 2-4, tab. XLII, fig. 2-3 (1794)