| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Microsphaera |
| Harvard University Herbaria Barcode(s) | 00953934 |
| Collector | A. B. Seymour |
| Country | United States of America |
| State | Illinois |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Illinois: Champaign County: Urbana |
| Locality | [no additional data] |
| Date Collected | 1879-10-23 |
| Host | on Quercus imbricaria |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/22d58214-5c25-42e6-8925-54c5405e9034 |
| Harvard University Herbaria Barcode | 00953934 |
| Herbarium | FH |
| Previous ownership | Gift of C. W. Dodge Farlow Herbarium |
| Family | Erysiphaceae |
| Determination | Microsphaera sp. |
| Determination Remarks | [0] |
| Annotation Text | Microsphaera extensa C+P. var. brevis Pk. |
| Determination | |
| Determination Remarks | [is label name] |
| Family | Erysiphaceae |
| Determination | Microsphaera extensa Cooke & Peck |
| Determination Remarks | [is filed under name] [is Current name] |
| Annotation Text | var. extensa |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
