| Classification | Apocynaceae: Alstonia | 
| Harvard University Herbaria Barcode(s) | 00032398 | 
| Type Status | Isotype | 
| Collector | A. D. E. Elmer | 
| Collector number | 13167 | 
| Country | Philippines | 
| State | Palawan | 
| Geography | Asia: Southeast Asia (Region): Philippines: Luzon: Palawan | 
| Locality | Puerto Princesa (Mount Pulgar) | 
| Date Collected | 1911-05-** | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5b90c298-02e7-4cd6-af39-5d0ffc87a293 | 
| Harvard University Herbaria Barcode | 00032398 | 
| Herbarium | GH | 
| Family | Apocynaceae | 
| Type Status | Isotype | 
| Isotype of | Alstonia iwahigensis Elmer | 
| Verified by | H. G. Bedell | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Alstonia iwahigensis Elmer) Leafl. Philipp. Bot. 1912. 4: 1447. | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |