| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00016869 |
| Type Status | Holotype |
| Collector | B. F. Bush |
| Collector number | 1163 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Bexar County: San Antonio |
| Date Collected | 1902-03-22 |
| Habitat | in woods. |
| Frequency | Common |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/65d22497-50e6-452c-bade-f94d7da55359 |
| Harvard University Herbaria Barcode | 00016869 |
| Herbarium | A |
| Family | Rosaceae |
| Determination | Crataegus mackensenii Sargent |
| Determination Remarks | [is label name] |
| Family | Rosaceae |
| Type Status | Holotype |
| Holotype of | Crataegus mackensenii Sargent |
| Verified by | Boufford, David Edward |
| Date Determined | 1986 |
| Determination Remarks | [is filed under name] |
| Annotation Text | Holotype |
| Taxon Reference | (for Crataegus mackensenii Sargent) Trees & Shrubs [Sargent] 1913. 2: 242. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
