Name requested: Europhium clavigerumMycologia 64 (2): 410, 411, 412, 413, 414. 66 (1): 143, 144. Mycotaxon 28 (1): 41.
Homotypic synonym: Ceratocystis clavigeraMycologia 81 (6): 903. Mycotaxon 28 (1): 41. Transactions of the Mycological Society of Japan 28 (3): 303.
Homotypic synonym: Ophiostoma clavigerumMycotaxon 28 (1): 41. 74 (1): 221. 91: 490, 491. 94: 162, 167.