Basionym Name:Sphaeria amorphula Schwein., Trans. Am. phil. Soc., New Series 4(2): 219 (1832)
Homotypic synonyms:Chaetophoma amorphula (Schwein.) Starbäck, Bih. K. svenska VetenskAkad. Handl., Afd. 3 19(no. 2): 62 (1894)