Name requested: Laxitextum crassumMycologia 62 (4): 849. Sydowia 14 (1-6): 124.
Homotypic synonym: Thelephora crassaMycologia 52 (6): 868. 67 (3): 530, 537. Mycotaxon 48: 73.
Homotypic synonym: Hymenochaete crassaMycologia 52 (6): 868.
Homotypic synonym: Lopharia crassaMycologia 65 (1): 197. 67 (3): 530, 531, 533, 534, 535, 537, 539, 540, 542, 543, 544, 547, 548, 549. 70 (2): 284, 290, 291, 292, 297. Mycology and Phytopathology [as Микология и Фитопатология] 12 (1): 7. Mycotaxon 3 (3): 491, 495, 545, 546, 547. 37: 56. 72: 374. 104: 84. Sydowia 14 (1-6): 124, 127, 132.
Homotypic synonym: Phanerochaete crassaMycotaxon 57: 69. 88: 375. 90 (2): 425. 104: 79, 84.
Homotypic synonym: Porostereum crassumMycotaxon 64: 239. 104: 84.