| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Boletus olivaceobrunneus Zeller & F.D.Bailey | R. T. Orr 351 with Dorothy B. Orr, 31 Dec 1961 | United States of America. California. Mendocino Co. Russian Gulch State Park. | 00985318 | ||
| Boletus olivaceobrunneus Zeller & F.D.Bailey | R. T. Orr 1479 with Dorothy B. Orr, 06 Oct 1967 | United States of America. Oregon. Lane Co. West Lava Campground. | 00985319 | ||
| Boletus olivaceobrunneus Zeller & F.D.Bailey | O. K. Miller 2655 21 Sep 1964 | United States of America. Idaho. Monford Cr. | 01900843 | ||
| Boletus olivaceobrunneus Zeller & F.D.Bailey | F. D. Bailey 5803 Oct 1933 | United States of America. Oregon. Lincoln Co. Siletz. | isolectotype | 65210 |  |
| Boletus olivaceobrunneus Zeller & F.D.Bailey | F. D. Bailey 5803 Oct 1933 | United States of America. Oregon. Lincoln Co. Siletz. | lectotype | 65211 |  |
