Name requested: Parmelia glabratulaLichenologist 3 (1): 67, 68, 68, 68, 68, 68, 135. 3 (3): 320. 12 (1): 71, 71. Lichens of North America null: 434. Mycotaxon 34 (1): 42. 61: 112, 123. 63: 195, 196. Persoonia 9 (2): 189.
Homotypic synonym: Melanelia glabratulaLichenologist 12 (1): 71. Lichens of North America null: 434. Mycotaxon 7 (1): 47, 48. 7 (3): 526. 60: 422, 423. 61: 112, 123.
Homotypic synonym: Parmelia fuliginosa subsp. glabratulaMycotaxon 7 (1): 48.
Heterotypic synonym: Parmelia glabratula subsp. glabratulaPersoonia 9 (2): 186, 187.