| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe |
| Barcode(s) | 00972993 |
| Collector | I. L. Conners |
| Country | Canada |
| State | Ontario |
| Geography | North America: North America (CA, US, MX) (Region): Canada: Ontario |
| Locality | Mer Bleu |
| Date Collected | 1931-09-12 |
| Host | on Alnus incana (L.) Moench |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/40a3719b-6782-40fa-9306-d3f63b62763d |
| Harvard University Herbaria Barcode | 00972993 |
| Herbarium | FH |
| Previous ownership | [ex] Herbarium, Division of Botany, Ottawa, Canada No. 1097 duplicate |
| Family | Erysiphaceae |
| Determination | Erysiphe aggregata (Peck) Farlow |
| Determination Remarks | [filed under] [label name] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
