| Classification | Fungi: Boletales: Boletaceae: Tylopilus | 
| Harvard University Herbaria Barcode(s) | 00543900 | 
| Type Status | Type | 
| Collector | R. Singer | 
| Collector number | F2904 | 
| Country | United States of America | 
| State | Florida | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Florida: Alachua County: Gainesville | 
| Locality | [no additional data] | 
| Date Collected | 1943-07-22 | 
| Project | Macrofungi TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a51fc299-7984-44d8-9b75-c82fe3e226b3 | 
| Harvard University Herbaria Barcode | 00543900 | 
| Herbarium | FH | 
| Family | Boletaceae | 
| Type Status | Type | 
| Type of | Tylopilus tabacinus var. dubius Singer | 
| Taxon Reference | (for  Tylopilus tabacinus var. dubius Singer) Mycologia 1945. 37(6): 7999. | 
| Family | Boletaceae | 
| Determination | Tylopilus tabacinus var. dubius Singer | 
| Determination Remarks | [filed under] [current name] | 
| Subcollection | Hymenomycete Boxed Type Collection | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Box | 
| Preparation Method | Dried |