| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Phyllactinia |
| Harvard University Herbaria Barcode(s) | 01085070 |
| Collector | J. P. Tracy |
| Collector number | 16129 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Humboldt County |
| Locality | Mouth of Little River |
| Date Collected | 1938-08-21 |
| Host | on Ribes divaricatum Dougl. |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2dd822ff-ec5f-4d00-9c87-5fa8299931bf |
| Harvard University Herbaria Barcode | 01085070 |
| Herbarium | FH |
| Previous ownership | distributed by the Herbarium of the University of California |
| Exsiccata | California Fungi Fascicle Cent. 7 Number 673 |
| Family | Erysiphaceae |
| Determination | Phyllactinia ribis (Jaczewski) Z. Y. Zhao |
| Determined by | Mitchell, James Kameron |
| Date Determined | 2025-03-28 |
| Determination Remarks | [current name] |
| Family | Erysiphaceae |
| Determination | Phyllactinia corylea (Persoon) P. Karsten |
| Determination Remarks | [filed under] [label name] |
| Subcollection | California Fungi |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
