| Classification | Cactaceae: Mammillaria |
| Barcode(s) | 01875395 |
| Collector | T. C. Plowman & S. Kilham |
| Collector number | AP 54 |
| Country | United States of America |
| State | New Mexico |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: New Mexico: Sandoval County |
| Locality | Mesa north of Armijo Draw, 20 mi. West of Rt. 44 |
| Date Collected | 1966-06-30 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d7e9481b-4e78-4b0c-a346-b08d47b3f122 |
| Harvard University Herbaria Barcode | 01875395 |
| Herbarium | ECON |
| Family | Cactaceae |
| Determination | Mammillaria heyderi Muehlenpfordt |
| Determined by | Plowman, Timothy Charles |
| Date Determined | 1972-07-** |
| Determination Remarks | [current name] |
| Family | Cactaceae |
| Determination | Mammillaria heyderi var. hemisphaerica Engelmann |
| Determination Remarks | [filed under] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
