| Classification | Fungi: Ascomycota: Erysiphales: Erysiphaceae: Erysiphe |
| Barcode(s) | 01131009 |
| Collector | M. J. Bradshaw |
| Collector number | MJB H6 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Suffolk County: Boston |
| Locality | Collected from the Arnold Arboretum |
| Date Collected | 2021-08-26 |
| Host | On Quercus muellenbergii [Quercus muehlenbergii], Host Accession: 112-92-B |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/29bf73ec-75c3-4904-b082-2df262a6992c |
| Harvard University Herbaria Barcode | 01131009 |
| Herbarium | FH |
| Family | Erysiphaceae |
| Determination | Erysiphe abbreviata (Peck) U. Braun & S. Takamatsu |
| Date Determined | 2025 |
| Determination Remarks | [filed under] [current name] |
| Family | Erysiphaceae |
| Determination | Erysiphe sp. |
| Determined by | Bradshaw, Michael James |
| Determination Remarks | [label name] |
| Determination | |
| Determined by | Liu, Miao |
| Date Determined | 2024-06-** |
| Annotation Text | Adaxial, thin myelia mat diffused or in patches; the 'specialized hyphae' zigzag at the base, 5-9 um wide at base, 4-7 um at the tip, 50-246 um long, the short ones can be confused with young conidiophores; chasmothecia not seen. Sporadic black ... [see annotation slip for additional data] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
