| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Boletus firmus Frost | E. E. Both 3644 17 Jul 1994 | United States of America. New York. Erie Co. Town of Orchard Park, Chesnut Ridge Park. | 316372 | ||
| Boletus firmus Frost | E. E. Both 31 Jul 1987 | United States of America. New York. Erie Co. Chestnut Ridge Park. | 36643 | ||
| Boletus firmus Frost | E. E. Both 22 Aug 1986 | United States of America. New York. Erie Co. Chestnut Ridge Park. | 36644 | ||
| Boletus firmus Frost | R. E. Halling 7757 with G. Mueller, S. Huhndorf, D. Quist, 27 Jun 1997 | Costa Rica. Guanacaste. Liberia, Area Conservacion Guanacaste, Rincon de la Vieja, sector Santa Maria, sendero a Agua Termales, 3 km al oeste de estacion. | 334047 | ||
| Boletus firmus Frost | R. E. Halling 7755 with Mueller, Huhndorf, and Quist, 26 Jun 1997 | Costa Rica. Guanacaste, near Liberia. Area Conservacion Guanacaste, Rincon de la Vieja, sector Santa Maria, sendero a Agua Termales, 3 km al oeste de estacion. | 334023 |  | |
| Boletus firmus Frost | R. E. Halling 8520 with Baroni, Lodge, Cifuentes, 04 Oct 2003 | Belize. Cayo. Mountain Pine Ridge: Macal River near Guacamaya Bridge. | 00796115 |
