| Classification | Fungi: Basidiomycota: Pucciniomycetes: Pucciniales: Melampsoraceae: Melampsora | 
| Harvard University Herbaria Barcode(s) | 00989402 | 
| Collector | G. G. Hedgcock | 
| Country | United States of America | 
| State | Rhode Island | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Rhode Island: Washington County: Block Island (Rhode Island) | 
| Locality | South of Old Harbor | 
| Date Collected | 1919-09-23 | 
| Host | Populus alba | 
| Project | Microfungi TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3f3e14ce-34f9-47cf-b735-ac880956b662 | 
| Harvard University Herbaria Barcode | 00989402 | 
| Herbarium | FH | 
| Previous ownership | ex Herbarium J. Franklin Collins | 
| Family | Melampsoraceae | 
| Determination | Melampsora abietis-canadensis C. A. Ludwig | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |