| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe |
| Harvard University Herbaria Barcode(s) | 00972994 |
| Collector | J. J. Davis |
| Country | United States of America |
| State | Wisconsin |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Wisconsin: Sawyer County: Hayward |
| Locality | [no additional data] |
| Date Collected | 1924-08-28 |
| Host | on Alnus incana |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/673ab3c5-ee15-4df2-8e61-57aafde1cabf |
| Harvard University Herbaria Barcode | 00972994 |
| Herbarium | FH |
| Previous ownership | From the Herbarium of the University of Wisconsin |
| Family | Erysiphaceae |
| Determination | Erysiphe aggregata (Peck) Farlow |
| Determination Remarks | [is filed under name] [is label name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
