| Classification | Fagaceae: Quercus |
| Harvard University Herbaria Barcode(s) | 00071009 |
| Type Status | Isolectotype |
| Collector | F. L. Wynd & C. H. Mueller |
| Collector number | 638 |
| Country | Mexico |
| State | Coahuila |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Coahuila: Acuña |
| Locality | Municipio de Villa Acuña. Sierra del Carmen; Canyon de Sentenla on Hacienda Piedra Blanca. |
| Date Collected | 1936-07-09 |
| Habitat | High slope with northwest exposure |
| Container | Plants of Mexico |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/baafe8e4-bdcd-4c2e-8745-f7df7e76230b |
| Harvard University Herbaria Barcode | 00071009 |
| Herbarium | A |
| Family | Fagaceae |
| Type Status | Isolectotype |
| Isolectotype of | Quercus endemica C. H. Müller |
| Verified by | Bartholomew, Bruce Monroe & Almeda, Frank |
| Date Determined | 2023-01-** |
| Determination Remarks | [filed under] [current name] |
| Annotation Text | =Quercus undulata Torr. |
| Taxon Reference | (for Quercus endemica C. H. Müller) Amer. Midl. Naturalist 1937. 18: 846. |
| Family | Fagaceae |
| Determination | Quercus undulata Torrey |
| Determined by | Breedlove, Dennis Eugene |
| Date Determined | 1994 |
| Family | Fagaceae |
| Determination | Quercus endemica C. H. Müller |
| Determined by | Breedlove, Dennis Eugene |
| Date Determined | 1994 |
| Annotation Text | Isotype |
| Family | Fagaceae |
| Determination | Quercus arizonica Sargent |
| Determined by | Muller, Cornelius Herman |
| Date Determined | 1943-12-22 |
| Family | Fagaceae |
| Determination | Quercus endemica C. H. Müller |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
