Homotypic Synonyms See Note

Basionym Name:
Lichen speireus Ach., Lich. suec. prodr. (Linköping): 59 (1799)

Homotypic synonyms:
Lecidea albocaerulescens var. speirea (Ach.) Flörke, Mag. Gesell. naturf. Freunde, Berlin 4: 284 (1810)
Lecidea calcarea var. speirea (Ach.) Schaer., Lich. helv. spicil. 3: 139 (1828)
Lecidea contigua [unranked] speirea (Ach.) Stenh., Nov. Sched. Critic. Lich. 14: 13 (1833)
Lecidea contigua f. speirea (Ach.) Nyl., in Cosson, Bull. Soc. bot. Fr. 15(2): 189 (1869)
Lecidea contigua subsp. speirea (Ach.) Tuck., Syn. N. Amer. Lich. (Boston) 2: 71 (1888)
Lecidea contigua var. speirea (Ach.) D. Dietr., Lichenogr. Germ. Deutschl. Flecht. naturg. Abbild. Beschreib. (Jena): 20, tab. 85 (1832)
Lecidea speirea (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 52 (1803)
Lecidea speirea f. speirea (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 52 (1803)
Lecidea speirea subsp. speirea (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 52 (1803)
Lecidea speirea var. speirea (Ach.) Ach., Methodus, Sectio prior (Stockholmiæ): 52 (1803)
Lichen peltatus * speirea (Ach.) Lam., Encycl. Méth. Bot., Suppl. (Paris) 3(2): 389 (1813)
Patellaria speirea (Ach.) Duby, Bot. Gall., Edn 2 (Paris) 2: 652 (1830)
Patellaria speirea var. speirea (Ach.) Duby, Bot. Gall., Edn 2 (Paris) 2: 652 (1830)
Porpidia speirea (Ach.) Kremp., Denkschr. Kgl. Bayer. Bot. Ges., Abt. 2 4: 210 (1861)
Porpidia speirea var. speirea (Ach.) Kremp., Denkschr. Kgl. Bayer. Bot. Ges., Abt. 2 4: 210 (1861)