| Classification | Apocynaceae: Alstonia | 
| Harvard University Herbaria Barcode(s) | 02182335 | 
| Collector | K. Sidiyasa, Ambriansyah, & Z. Arifin | 
| Collector number | 1203 | 
| Country | Indonesia | 
| State | Kalimantan Timur (East Kalimantan) | 
| Geography | Asia: Southeast Asia (Region): Indonesia: Kalimantan: Kalimantan Timur (East Kalimantan) | 
| Locality | PT. Inhutani area, Km.16 from Labanan to Kelai. | 
| Georeference | 1.55' N, 117° 13' E | 
| Date Collected | 1998-05-05 | 
| Elevation | 85 m | 
| Verbatim Elevation | 85 m. | 
| Habitat | Along road. | 
| Project | Plants on Edge/Endless Forms TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/26323674-5e01-4dfe-a196-08993eb4fd46 | 
| Harvard University Herbaria Barcode | 02182335 | 
| Herbarium | A | 
| Family | Apocynaceae | 
| Determination | Alstonia angustifolia Wallich | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |