| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe |
| Classification 1 | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Microsphaera |
| Classification 2 | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe |
| Harvard University Herbaria Barcode(s) | 01122172 |
| Collector | D. A. Preston |
| Collector number | 91 |
| Country | United States of America |
| State | Oklahoma |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Oklahoma: Ottawa County |
| Locality | 2 mi. E. of Picher |
| Date Collected | 1943-10-09 |
| Host | Strophostyles pauciflora (Benth.) Wats. |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a92130c1-70b1-4a84-b0df-0a0b3f9d63fc |
| Harvard University Herbaria Barcode | 01122172 |
| Herbarium | FH |
| Previous ownership | [ex] A. & M. Herb. 2933; [ex] Cryptogamic Herbarium, Oklahoma Agricultural and Mechanical College, Department of Botany and Plant Pathology |
| Family | Erysiphaceae |
| Determination | Erysiphe polygoni de Candolle |
| Determined by | Preston, D. A. |
| Determination Remarks | [is label name] |
| Family | Erysiphaceae |
| Determination | Microsphaera diffusa Cooke & Peck |
| Determined by | Braun, Uwe |
| Date Determined | 1983 |
| Determination Remarks | [is filed under name] |
| Family | Erysiphaceae |
| Determination | Erysiphe diffusa (Cooke & Peck) U. Braun & S. Takamatsu |
| Determination Remarks | [0] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
