Name requested: Physcia obscurata

Lichenologist 8 (2): 132.

Homotypic synonym: Heterodermia obscurata

	Lichenologist 3 (2): 242. 8 (2): 132, 132, 132. 12 (1): 43, 43, 43.
	Lichens of North America null: 69, 335, 338, 339, 340, 548, 549.
	Mycotaxon 14 (1): 348. 18 (1): 82. 31 (2): 543. 35 (2): 421. 39: 19. 77: 113. 83: 394. 105: 66, 68, 69, 70, 71, 74.