Name requested: Usnea hirtaLichenologist 3 (1): 151, 151, 151. 3 (3): 324, 324, 325. 4 (1): 13. 12 (1): 102, 102, 102. 29 (3): 211, 211, 211, 211. Lichens of North America null: 712, 714, 720, 721. Mycotaxon 19: 420. 21: 279. 23: 247. 26: 257, 260. 40: 204. 77: 319. 84: 298, 307. 87: 342, 344, 345. 96: 144.