| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00017556 |
| Type Status | Syntype |
| Collector | Mrs. J. E. Thayer |
| Collector number | 2 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Worcester County: West Boylston |
| Date Collected | [16 Sep] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5df2081d-4867-4dac-b7a4-933af21d3653 |
| Harvard University Herbaria Barcode | 00017556 |
| Herbarium | A |
| Family | Rosaceae |
| Type Status | Syntype |
| Syntype of | Crataegus thayeri Sargent |
| Verified by | D. E. Boufford |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Crataegus thayeri Sargent) Rhodora 1903. 5: 113. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
