Name requested: HeydeniopsisSydowia 45 (1): 100, 101.
Heterotypic synonym: ChaenothecaLichens of North America null: 5, 14, 93, 99, 192, 221, 222, 752, 756, 760. Mycotaxon 71: 175, 176. 87: 3, 4, 5. 100: 146. 105: 458.
Heterotypic synonym: CybebeLichens of North America null: 222.