| Classification | Fungi: Basidiomycota: Pucciniomycetes: Pucciniales: Melampsoraceae: Melampsora |
| Harvard University Herbaria Barcode(s) | 00852407 |
| Collector | J. Dearness |
| Country | Canada |
| State | Ontario |
| Geography | North America: North America (CA, US, MX) (Region): Canada: Ontario: London |
| Locality | along [illegible] Creek |
| Date Collected | 1923-09-13 |
| Host | Populus nigra or a var of nigra, nigra x with tremula |
| Project | Macroalgae TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/9f5280cd-baa0-4779-a470-7f7463d97bd1 |
| Harvard University Herbaria Barcode | 00852407 |
| Herbarium | FH |
| Previous ownership | ex E. Bartholemew Herb. |
| Family | Melampsoraceae |
| Determination | Melampsora tremulae Tulasne |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
