Basionym Name:Abrothallus protothallinus Anzi, Cat. Lich. Sondr.: 116 (1860)
Homotypic synonyms:Buellia protothallina (Anzi) Jatta, Syll. Lich. Ital. (Trano): 400 (1900)Buellia protothallina var. protothallina (Anzi) Jatta, Syll. Lich. Ital. (Trano): 400 (1900)Dactylospora protothallina (Anzi) Hafellner, Beih. Nova Hedwigia 62: 124 (1979)Karschia protothallina (Anzi) Körb., Parerga lichenol. (Breslau) 5: 460 (1865)Sclerococcum protothallinum (Anzi) Ertz & Diederich, in Diederich, Lawrey & Ertz, Bryologist 121(3): 399 (2018)