| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Phyllactinia | 
| 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 |