Basionym Name:Chaenotheca chlorella var. ecrustacea Vain., Acta Soc. Fauna Flora fenn. 57(no. 1): 98 (1927)
Homotypic synonyms:Rinodina turfacea f. ecrustacea (Vain.) H. Magn., Meddn Göteb. Bot. Trädg. 17: 262 (1947)