Basionym Name:Porina nucula Ach., Syn. meth. lich. (Lund): 112 (1814)
Homotypic synonyms:Porophora nucula (Ach.) Spreng., Syst. veg., Edn 16 4(1): 241 (1827)Segestria nucula (Ach.) Hellb., Bih. K. svenska VetenskAkad. Handl., Afd. 3 21(no. 13): 132 (1896)Sphaeromphale nucula (Ach.) Trevis., Flora, Regensburg 38: 182 (1855)Verrucaria nucula (Ach.) Nyl., Expos. Synopt. Pyrenocarp.: 40 (1858)Verrucaria nucula var. nucula (Ach.) Nyl., Expos. Synopt. Pyrenocarp.: 40 (1858)