| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe |
| Classification 1 | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Microsphaera |
| Harvard University Herbaria Barcode(s) | 01122177 |
| Collector | H. C. Greene |
| Collector number | HCG 756 |
| Country | United States of America |
| State | Wisconsin |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Wisconsin: Dane County: Madison |
| Locality | [no additional data] |
| Date Collected | 1944-09-09 |
| Host | On Corylus americana |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d2df4f1c-a642-48dd-8f03-415b0f0c764f |
| Harvard University Herbaria Barcode | 01122177 |
| Herbarium | FH |
| Previous ownership | From the Herbarium of the University of Wisconsin |
| Family | Erysiphaceae |
| Determination | Erysiphe coryli-americanae M. Bradshaw |
| Determined by | Mitchell, James Kameron |
| Date Determined | 2025-05-18 |
| Determination Remarks | [filed under] [current name] |
| Family | Erysiphaceae |
| Determination | Microsphaera ellisii U. Braun |
| Determined by | Braun, Uwe |
| Date Determined | 1982-02-10 |
| Family | Erysiphaceae |
| Determination | Microsphaera alni (de Candolle) G. Winter |
| Determined by | Greene, Henry Campbell |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
