Name requested: Acaulium albonigrescensMycologia 23 (5): 316, 317, 324, 325, 326. 48 (3): 446. Persoonia 8 (2): 194. Sydowia 11 (1-6): 288.
Homotypic synonym: Microascus albonigrescensMycotaxon 74 (2): 395, 397, 398, 405. Persoonia 8 (2): 192, 194.