| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe |
| Classification 1 | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Microsphaera |
| Harvard University Herbaria Barcode(s) | 01122184 |
| Collector | S. H. Burnham |
| Country | United States of America |
| State | New York |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: New York: Washington County |
| Locality | Lake George Region; woods NE. of Tripoli, southern W. Fort Ann |
| Date Collected | 1918-09-15 |
| Container | Flora of Lake George Region, New York |
| Host | On Quercus velutina |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/73d16091-c338-4a83-bb16-84563c32c12a |
| Harvard University Herbaria Barcode | 01122184 |
| Herbarium | FH |
| Previous ownership | [ex] White Herb. #3325 |
| Family | Erysiphaceae |
| Determination | Erysiphe extensa (Cooke & Peck) U. Braun & S. Takamatsu |
| Date Determined | 2025 |
| Determination Remarks | [current name] |
| Family | Erysiphaceae |
| Determination | Microsphaera extensa Cooke & Peck |
| Determined by | Braun, Uwe |
| Date Determined | 1982-02-08 |
| Determination Remarks | [filed under] |
| Annotation Text | var. extensa |
| Family | Erysiphaceae |
| Determination | Microsphaera alni (de Candolle) G. Winter |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
