Name requested: Marasmius dichromopusSydowia 36: 133.
Heterotypic synonym: Marasmius nigripesMycologia 37 (4): 439. 62 (4): 849. 67 (5): 1069. Mycotaxon 65: 258. 75: 467, 468. Sydowia 19 (1-6): 281. 36: 133, 137. 39: 102.
Heterotypic synonym: Marasmius subcinereusPersoonia 4 (2): 110, 111. Sydowia 36: 126, 136. 39: 103.
Heterotypic synonym: Agaricus nigripesMycotaxon 65: 258. Persoonia 12 (1): 59. Sydowia 36: 125, 133. 39: 102.
Heterotypic synonym: Heliomyces nigripesMycotaxon 65: 258. Sydowia 36: 133. 39: 102.
Heterotypic synonym: Marasmius caesiusSydowia 36: 133.
Heterotypic synonym: Marasmiellus nigripesMycologia 50 (1): 107. Mycotaxon 36 (2): 340. 57: 59. 65: 258, 259. Persoonia 4 (2): 111. 12 (1): 34. Sydowia 11 (1-6): 373. 36: 133. 39: 102. Transactions of the Mycological Society of Japan 23 (4): 502. 25 (2): 215.
Heterotypic synonym: Tetrapyrgos nigripesMycotaxon 65: 245, 258, 259. 82: 235. Sydowia 39: 102.