| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Sphaerotheca |
| Harvard University Herbaria Barcode(s) | 00953734 |
| Collector | C. V. Piper |
| Collector number | 546 |
| Country | United States of America |
| State | Washington |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Washington: Whitman County: Pullman |
| Locality | [no additional data] |
| Date Collected | 1898-07-20 |
| Container | Fungi of Washington |
| Host | On Troximon heterophyllum Greene [Agoseris heterophylla] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e31789ed-1ac6-47f7-89de-f5cd1f6f9d5d |
| Harvard University Herbaria Barcode | 00953734 |
| Herbarium | FH |
| Family | Erysiphaceae |
| Determination | Sphaerotheca fusca (Fries) S. Blumer: Fries |
| Determination Remarks | [filed under] [current name] |
| Family | Erysiphaceae |
| Determination | Sphaerotheca castagnei Léveillé |
| Determined by | [handwriting of ID is W. G. Farlow's] |
| Determination Remarks | [label name] |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
