| Classification | Asteraceae: Porophyllum |
| Harvard University Herbaria Barcode(s) | 00011405 |
| Type Status | Syntype |
| Collector | C. G. Pringle |
| Collector number | 9059 |
| Country | Mexico |
| State | Guerrero |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Guerrero |
| Locality | Mountains above Iguala, 3000 ft. |
| Date Collected | 1900-10-24 |
| Elevation | 914 m |
| Habitat | Ledges |
| Substrate | Limestone |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0cd29506-7a03-4f17-a7e9-3088fc5be010 |
| Harvard University Herbaria Barcode | 00011405 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Syntype |
| Syntype of | Porophyllum calcicola B. L. Robinson & Greenman |
| Verified by | V. M. Bates (A/GH) |
| Date Determined | 1985 |
| Taxon Reference | (for Porophyllum calcicola B. L. Robinson & Greenman) Proc. Amer. Acad. Arts 1903. 39: 116. |
| Family | Asteraceae |
| Determination | Porophyllum calcicola B. L. Robinson & Greenman |
| Determined by | R. R. Johnson |
| Date Determined | 1964 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Porophyllum calcicola B. L. Robinson & Greenman |
| Determined by | B. L. Robinson (GH) |
| Date Determined | 1911 |
| Family | Asteraceae |
| Determination | Porophyllum calcicola B. L. Robinson & Greenman |
| Date Determined | 1903-01-14 |
| Determination Remarks | Pencilled on sheet above collector label |
| Annotation Text | n. sp. |
| Family | Asteraceae |
| Determination | Porophyllum pringlei B. L. Robinson |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
