| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00017459 |
| Type Status | Holotype, Syntype |
| Collector | C. S. Sargent |
| Collector number | 6 |
| Country | United States of America |
| State | Missouri |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Missouri: Jasper County: Carthage |
| Date Collected | 1902-05-11 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e0e410bc-5c43-4f49-a957-758062f9dd51 |
| Harvard University Herbaria Barcode | 00017459 |
| 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 | Holotype |
| Holotype of | Crataegus secta Sargent |
| Verified by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Determination Remarks | Note that the protologue cites the type as Palmer and Sargent 6 |
| Taxon Reference | (for Crataegus secta Sargent) Rep. (Annual) Missouri Bot. Gard. 1908. 19: 83. |
| Family | Rosaceae |
| Type Status | Syntype |
| Syntype of | Crataegus secta Sargent |
| Verified by | D. E. Boufford |
| Date Determined | 1987 |
| Taxon Reference | (for Crataegus secta Sargent) Rep. (Annual) Missouri Bot. Gard. 1908. 19: 83. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
