Name requested: Parmelia dilatataLichenologist 3 (1): 135. 7 (1): 22. 12 (1): 71. Mycotaxon 5 (2): 439. 77: 264.
Homotypic synonym: Parmotrema dilatatumLichens of North America null: 491, 495, 496, 499. Mycotaxon 1 (2): 106, 114. 5 (2): 439. 25 (1): 90. 27: 475. 31 (2): 498. 35 (2): 423. 44 (1): 4. 77: 225, 260, 264, 269, 270. 79: 257. 81: 261. 91: 93, 94, 95, 100, 105, 108. 105: 235, 242, 243, 246.