| Boletus billieae Both, Bessette & W.J.Neill | S. Jakob s.n. | United States of America. New York. Richmond Co. Staten Island. Long Pond Park. | | | |
| Boletus billieae Both, Bessette & W.J.Neill | A. Weissman s.n. | United States of America. Massachusetts. Barnstable Co. Truro. Cape Cod National Seashore. | | 04683062 |  |
| Boletus billieae Both, Bessette & W.J.Neill | A. Weissman s.n. | United States of America. Massachusetts. Barnstable Co. Truro. Cape Cod National Seashore. | | 04683061 |  |
| Boletus billieae Both, Bessette & W.J.Neill | S. Jakob s.n. | United States of America. New York. Richmond Co. Staten Island. High Rock Park. | | 04285840 |  |
| Boletus billieae Both, Bessette & W.J.Neill | | | | 04285555 |  |
