Name requested: Lichen griseus

Lichenologist 3 (1): 150. 12 (1): 101. 16 (3): 232.

Homotypic synonym: Physcia grisea

	Annales Mycologici 36 (2-3): 152. 37 (1-2): 85.
	Lichenologist 3 (1): 139, 139. 3 (3): 322. 6 (1): 19. 7 (1): 18. 12 (1): 78.
	Mycotaxon 10 (1): 211.

Homotypic synonym: Physconia grisea

	Lichenologist 3 (3): 322. 6 (1): 19. 7 (1): 18. 12 (1): 78, 78.
	Lichens of North America null: 566.
	Mycotaxon 10 (1): 211. 19: 419. 21: 279. 26: 257, 260. 31 (2): 546. 34 (1): 44. 40: 203, 204, 249. 50: 328. 51: 91, 97. 61: 138. 86: 185, 193.