| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00003127 |
| Type Status | Holotype |
| Collector | E. J. Palmer |
| Collector number | 39265 |
| Country | United States of America |
| State | Missouri |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Missouri: Boone County: Columbia |
| Locality | Limestone hills |
| Date Collected | 1931-05-05 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2e5a4844-6c74-419d-8e86-4dcce17a9583 |
| Harvard University Herbaria Barcode | 00003127 |
| Herbarium | A |
| Family | Rosaceae |
| Determination | Crataegus danielsii E. J. Palmer |
| 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 danielsii E. J. Palmer |
| Verified by | D. E. Boufford |
| Taxon Reference | (for Crataegus danielsii E. J. Palmer) J. Arnold Arbor. 1935. 16: 355. |
| Family | Rosaceae |
| Type Status | Holotype |
| Holotype of | Crataegus danielsii E. J. Palmer |
| Verified by | J. B. Phipps (UWO) & G. Yatskievych (MO) |
| Date Determined | 2003 |
| Determination Remarks | Note that the protologue mistakenly cites 4 May 1931 as the collection date. Also, the conspecific packet of fragments from Rickett on 22 Sep 1931 is merely a paratype. Possibly ser. Crus-galli x ser. Virides. |
| Taxon Reference | (for Crataegus danielsii E. J. Palmer) J. Arnold Arbor. 1935. 16: 355. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
