| Classification | Betulaceae: Ostrya |
| Harvard University Herbaria Barcode(s) | 00263686 |
| Type Status | Isotype |
| Collector | J. W. Toumey |
| Collector number | 272 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona |
| Locality | Grand Canyon of the Colorado [River] |
| Date Collected | 1892-07-10 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1c36d450-2ebb-43ca-b462-f5266e6fc2fd |
| Harvard University Herbaria Barcode | 00263686 |
| Herbarium | A |
| Previous ownership | ex US |
| Family | Betulaceae |
| Type Status | Isotype |
| Isotype of | Ostrya knowltonii Coville |
| Verified by | P. K. Holmgren |
| Date Determined | 2008 |
| Taxon Reference | (for Ostrya knowltonii Coville) Gard. & Forest 1894. 7: 115. |
| Family | Betulaceae |
| Determination | Ostrya knowltonii Coville |
| Determined by | K. O. Yoo |
| Date Determined | 2001 |
| Determination Remarks | [current name] |
| Family | Betulaceae |
| Determination | Ostrya knowltonii Coville |
| Determination Remarks | [label name] |
| Annotation Text | sp. ined. Duplicate type specimen |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
