| Classification | Rubiaceae: Houstonia |
| Barcode(s) | 00096879 |
| Type Status | Isotype |
| Collector | M. L. Butterwick, E. J. Lott & S. Kennedy |
| Collector number | 3893 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Brewster County |
| Locality | Ca. 20 miles south of Sanderson, on the Bullis Gap Ranch, along ridgetop of Bullis Range, ca. 2-3 miles northwest of the Rio Grande |
| Georeference | 29° 47' .5" N, 102° 32' .5" W |
| Date Collected | 1977-08-27 |
| Habitat | in shallow pockets or crevices of limestone bedrock |
| Remarks | Associated with Penstemon baccharifolius, Phyllanthus ericoides, Polygala maravillasensis and Cirsium turneri |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a6598153-5af0-4afa-9c60-ed0f87f5611c |
| Harvard University Herbaria Barcode | 00096879 |
| Herbarium | GH |
| Family | Rubiaceae |
| Type Status | Isotype |
| Isotype of | Houstonia butterwickiae Terrell |
| Verified by | E.E. Terrell |
| Date Determined | 1979 |
| Determination Remarks | [filed under] |
| Annotation Text | ISOTYPE |
| Taxon Reference | (for Houstonia butterwickiae Terrell) Brittonia 1979. 31: 164. |
| Family | Rubiaceae |
| Determination | Houstonia sp. |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
