| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe | 
| Harvard University Herbaria Barcode(s) | 01131085 | 
| Collector | D. E. Boufford | 
| Collector number | 45669 | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: North Cambridge | 
| Locality | Jackson Street; Residential neighborhood. Garden between 100 and 104 Jackson Street | 
| Georeference | 42 23 47 N, 71 8 8 W | 
| Date Collected | 2021-10-16 | 
| Verbatim Elevation | 14 m | 
| Habitat | Garden | 
| Host | on cultivated Paeonia (likely P. [Paeonia] lactiflora Pallas) | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3a7fc1fe-53e2-4c30-9388-bb9471c9233b | 
| Harvard University Herbaria Barcode | 01131085 | 
| Herbarium | FH | 
| Family | Erysiphaceae | 
| Determination | Erysiphe paeoniae R. Y. Zheng & G. Q. Chen | 
| Determined by | Bradshaw, Michael James | 
| Date Determined | 2021-11-03 | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |