Name requested: Polyporus amorphusAnnales Mycologici 25 (3-4): 348. Mycologia 8 (1): 52. 9 (3): 131. 9 (5): 261, 262, 263, 264, 265, 266, 267, 268, 269, 270. 10 (1): 6, 13. 10 (3): 109. 10 (4): 213. 48 (1): 100, 101, 102, 118. 53 (5): 487. 56 (4): 615. Persoonia 5 (1): 91, 92, 98, 108, 122. 6 (2): 212.
Homotypic synonym: Gloeoporus amorphusMycology and Phytopathology 1 (4): 284. 3 (1): 30. 9 (1): 16, 17, 19. Sydowia 21 (1-6): 209. 26 (1-6): 121. Transactions of the Mycological Society of Japan 23 (4): 505.
Homotypic synonym: Skeletocutis amorphaMycotaxon 23: 174, 195. 33: 275, 308. 44 (1): 248. 52 (1): 45. 53: 445. 72: 51. 77: 96. 82: 298, 303, 304, 307. 83: 120. Persoonia 10 (3): 347, 348, 353, 354, 355*. Sydowia 40: 243, 244.