| Classification | Rosaceae: Crataegus |
| Harvard University Herbaria Barcode(s) | 00346876 |
| Collector | J. T. Howell & J. W. Stacey |
| Collector number | 12868 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Sonoma County |
| Locality | Pitkin Marsh, 5 miles north of Sebastopol |
| Date Collected | 1936-07-26 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6a5ad2d8-5a6e-44d0-b2c6-074b38aec358 |
| Harvard University Herbaria Barcode | 00346876 |
| Herbarium | A |
| Family | Rosaceae |
| Determination | Crataegus douglasii Lindley |
| Determination Remarks | [is filed under name] |
| Family | Rosaceae |
| Determination | Crataegus gaylussacia A. Heller |
| Determination Remarks | [0] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
