| Name | Melanogaster ambiguus var. euryspermus Zeller & C. W. Dodge |
| Authorship | Zeller & C. W. Dodge |
| Rank | Variety |
| Placed in | Melanogaster ambiguus (Vittadini) Tulasne & C. Tulasne |
| Citation | 1935 Ann. Missouri Bot. Gard. 22: 373 |
| Name | Melanogaster ambiguus var. euryspermus Zeller & C. W. Dodge |
| Authorship | Zeller & C. W. Dodge |
| Rank | Variety |
| Placed in | Melanogaster ambiguus (Vittadini) Tulasne & C. Tulasne |
| Citation | 1935 Ann. Missouri Bot. Gard. 22: 373 |