| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe | 
| Harvard University Herbaria Barcode(s) | 00972600 | 
| Collector | H. P. Sartwell | 
| Collector number | 290 | 
| Country | United States of America | 
| State | New York | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: New York: Yates County: Penn Yan | 
| Locality | [no additional data] | 
| Substrate | fol. | 
| Host | Querc. rubrae [Quercus rubra] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1d5a0eb7-dd72-4438-a40b-9a00a2428280 | 
| Harvard University Herbaria Barcode | 00972600 | 
| Herbarium | FH | 
| Family | Erysiphaceae | 
| Determination | Erysiphe densissima Schweinitz | 
| Determination Remarks | [filed under] [label name] [current name] | 
| Determination |  | 
| Determined by | Braun, Uwe | 
| Date Determined | 1985-09-03 | 
| Annotation Text | Too scarce to be determined! | 
| Subcollection | Curtis Herbarium | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |