| Classification | Rosaceae: Crataegus | 
| Harvard University Herbaria Barcode(s) | 00002564 | 
| Type Status | Syntype | 
| Collector | M. L. Fernald | 
| Collector number | 3 | 
| Country | United States of America | 
| State | Maine | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Maine: Penobscot County: Orono | 
| Locality | Lower Penobscot valley | 
| Date Collected | 1901-09-19 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2429641b-3348-427e-83fa-8351c30bbcfd | 
| Harvard University Herbaria Barcode | 00002564 | 
| Herbarium | GH | 
| Family | Rosaceae | 
| Type Status | Syntype | 
| Syntype of | Crataegus alnorum Sargent | 
| Verified by | D. E. Boufford | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Crataegus alnorum Sargent) Rhodora 1903. 5: 153. | 
| Sex | not determined | 
| Phenology | Fruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |