Basionym Name:Lichen picinus Ach., Lich. suec. prodr. (Linköping): 14 (1799)
Homotypic synonyms:Lecidea microphylla var. picina (Ach.) Ach., Syn. meth. lich. (Lund): 53 (1814)Lichen microphyllus * picina (Ach.) Lam., Encycl. Méth. Bot., Suppl. (Paris) 3(2): 383 (1813)Pannaria microphylla f. picina (Ach.) Vain., Meddn Soc. Fauna Flora fenn. 6: 141 (1881)Patellaria microphylla var. picina (Ach.) Duby, Bot. Gall., Edn 2 (Paris) 2: 655 (1830)Trachyderma microphyllum var. picinum (Ach.) Trevis., Lichenoth. Veneta 3-4: no. 98 (1869)