| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00016808 |
| Type Status | Neotype, Probable Type |
| Collector | G. W. Letterman |
| Country | United States of America |
| State | Missouri |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Missouri: Saint Louis County: Allenton |
| Date Collected | 1883-05-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e254de37-e211-4557-97ed-aa0c633ed606 |
| Harvard University Herbaria Barcode | 00016808 |
| Herbarium | A |
| Family | Rosaceae |
| Determination | Crataegus collina var. lettermanii (Sargent) Eggleston |
| Determined by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Determination Remarks | [is Current name] |
| Family | Rosaceae |
| Type Status | Neotype |
| Neotype of | Crataegus lettermanii Sargent |
| Verified by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Taxon Reference | (for Crataegus lettermanii Sargent) Bot. Gaz. 1901. 31: 220. |
| Family | Rosaceae |
| Type Status | Probable Type |
| Probable Type of | Crataegus lettermanii Sargent |
| Verified by | D. E. Boufford |
| Date Determined | 1986 |
| Determination Remarks | Date cited incorrectly in protologue |
| Taxon Reference | (for Crataegus lettermanii Sargent) Bot. Gaz. 1901. 31: 220. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
