| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe |
| Harvard University Herbaria Barcode(s) | 01122078 |
| Collector | J. A. Parmelee & P. M. deCarteret |
| Collector number | 5733 |
| Country | Canada |
| State | Ontario |
| Geography | North America: North America (CA, US, MX) (Region): Canada: Ontario: Thunder Bay District |
| Locality | Kenogamisis Lake, 7km SE Geraldton |
| Date Collected | 1981-09-15 |
| Habitat | sandy shoreline |
| Substrate | Female catkins |
| Host | on Alnus crispa (Aiton) Pursh. |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/089c8aa0-31d1-4142-a7b9-3d6e5b79e3dc |
| Harvard University Herbaria Barcode | 01122078 |
| Herbarium | FH |
| Previous ownership | [ex] National Mycological Herbarium of Canada, Herbier National de Mycologie du Canada, DAOM 184431 |
| Family | Erysiphaceae |
| Determination | Erysiphe aggregata (Peck) Farlow |
| Determined by | Parmelee, John Aubrey |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
