| Classification | Cactaceae: Mammillaria |
| Classification 1 | Cactaceae: Epithelantha |
| Classification 2 | Cactaceae: Mammillaria |
| Harvard University Herbaria Barcode(s) | 00063144 |
| Type Status | Possible Isosyntype |
| Collector | C. Wright |
| Collector number | 227 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Val Verde County |
| Locality | Western Texas to El Paso, New Mexico [Devils River] |
| Date Collected | 1849-06-28 |
| Habitat | [Hills of] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f4d03441-d54b-4720-ae3b-672fc6b45afe |
| Harvard University Herbaria Barcode | 00063144 |
| Herbarium | GH |
| Previous ownership | ex Herb. John A. Lowell, transferred from the Boston Society of Natural History to GH, Oct. 2,1941 |
| Family | Cactaceae |
| Determination | Mammillaria micromeris Engelmann |
| Determination Remarks | [is label name] |
| Family | Cactaceae |
| Determination | Epithelantha micromeris (Engelmann) F. A. C. Weber ex Britton & Rose |
| Determined by | W. T. Kittredge |
| Date Determined | 2008 |
| Determination Remarks | [is Current name] |
| Family | Cactaceae |
| Type Status | Possible Isosyntype |
| Possible Isosyntype of | Mammillaria micromeris Engelmann |
| Verified by | W. T. Kittredge |
| Date Determined | 2008 |
| Taxon Reference | (for Mammillaria micromeris Engelmann) Proc. Amer. Acad. Arts 1856. 3: 260. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
