| Harvard University Herbaria Barcode(s) | 00018342 |
| Type Status | Syntype |
| Collector | R. Ridgway |
| Collector number | 2106 |
| Country | United States of America |
| State | Illinois |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Illinois: Richland County |
| Locality | Page Whittaker farm |
| Date Collected | 1924-06-02 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1018b4ca-1e45-44aa-b32c-ae347976da12 |
| Harvard University Herbaria Barcode | 00018342 |
| Herbarium | A |
| Type Status | Syntype |
| Syntype of | Crataegus ×whitakeri Sargent |
| Verified by | D. E. Boufford |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Crataegus ×whitakeri Sargent) J. Arnold Arbor. 1925. 6: 3. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
