Homotypic Synonyms See Note

Basionym Name:
Cyphelium viridulum Ach., K. Vetensk-Acad. Nya Handl. 5: 226, tab. VIII, fig. 5 (1817)

Homotypic synonyms:
Calicium atomarium var. viridulum (Ach.) Wallr., Fl. crypt. Germ. (Norimbergae) 1: 571 (1831)
Calicium disseminatum subsp. viridulum (Ach.) Vain., Meddn Soc. Fauna Flora fenn. 6: 92 (1881)
Calicium disseminatum var. viridulum (Ach.) Nyl., Syn. meth. lich. (Parisiis) 1(2): 146 (1860)
Calicium tympanellum var. viridulum (Ach.) Wahlenb., Fl. Suec. 2: 878 (1826)
Calicium viridulum (Ach.) Fr., Sched. Crit. Lich. Suec., Fasc. 1-4: 8 (1824)
Chaenotheca disseminata var. viridula (Ach.) Zahlbr., Cat. Lich. Univers. 1: 566 (1922)
Cyphelium disseminatum b viridulum (Ach.) Arnold, Flora, Regensburg 68: 58 (1885)
Cyphelium disseminatum f. viridulum (Ach.) Arnold, Flora, Regensburg 68(4): 58 (1885)
Trachylia viridula (Ach.) Fr., Summa veg. Scand., Sectio Prior (Stockholm): 118 (1845)