| Classification | Crataegus |
| Harvard University Herbaria Barcode(s) | 00017757 |
| Type Status | Isotype |
| Collector | A. A. Heller |
| Collector number | 6052 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Sonoma County: Sebastopol |
| Locality | Lagoon at Sebastopol |
| Date Collected | 1902-08-20 |
| Habitat | Lagoon |
| Container | Plants of California: Sonoma County |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/448fb1d1-252d-42b2-a123-d5d8eb069800 |
| Harvard University Herbaria Barcode | 00017757 |
| Herbarium | A |
| Determination | Crataegus gaylussacia A. Heller |
| Determination Remarks | [is label name] |
| Determination | Crataegus gaylussacia A. Heller |
| Determination Remarks | [is Current name] |
| Type Status | Isotype |
| Isotype of | Crataegus gaylussacia A. Heller |
| Verified by | D. E. Boufford (A) |
| Date Determined | 1985 |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Crataegus gaylussacia A. Heller) Bull. S. Calif. Acad. Sci. 1903. 2: 69. |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
