Basionym Name:Acarospora fuscata f. rosulata Th. Fr., Lich. Scand. (Upsaliae)(1): 218 (1871)
Homotypic synonyms:Acarospora discreta f. rosulata (Th. Fr.) H. Olivier, Mém. Soc. natn. Sci. nat. Cherbourg 37: 81 (1909)Acarospora rosulata (Th. Fr.) H. Magn., Göteborg. Vetensk.-och Vitter.-Handl., Ser. 4 28(no. 2): 121 (1924)