Name requested: Retinocyclus abietisLichenologist 12 (1): 17. Mycologia 48 (6): 866, 867, 868, 869, 870, 871. 53 (2): 167. Sydowia 11 (1-6): 292. Transactions of the Mycological Society of Japan 26 (3): 333, 336.
Homotypic synonym: Tympanis abietisMycologia 48 (6): 867, 869, 871. Sydowia 11 (1-6): 292.
Heterotypic synonym: Epithyrium resinaeMycologia 75 (1): 59, 60. Persoonia 9 (2): 194. Transactions of the Mycological Society of Japan 26 (3): 336.
Heterotypic synonym: Tromera difformisAnnales Mycologici 15 (1-2): 102. Lichenologist 3 (2): 247. 12 (1): 17. Persoonia 9 (2): 194. Transactions of the Mycological Society of Japan 26 (3): 333.
Heterotypic synonym: Sarea difformisTransactions of the Mycological Society of Japan 26 (3): 333, 336.
Heterotypic synonym: Biatorella difformisLichenologist 3 (2): 247. 12 (1): 17, 17. Mycologia 32 (6): 811.