| Classification | Cactaceae: Mammillaria |
| Harvard University Herbaria Barcode(s) | 01875374 |
| Collector | F. R. Fosberg |
| Collector number | S3438 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona: Graham County |
| Locality | Coolidge Dam |
| Date Collected | 1930-07-17 |
| Verbatim Elevation | 330 m |
| Habitat | Steep rocky slopes. Lower Sonoran Zone |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5ebc28ad-ed8a-43ae-8634-92e60bdba280 |
| Harvard University Herbaria Barcode | 01875374 |
| Herbarium | GH |
| Family | Cactaceae |
| Determination | Mammillaria microcarpa Engelmann |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
