| Name | Alstonia angustiloba Miquel |
| Authorship | Miquel |
| Rank | Species |
| Placed in | Alstonia R. Brown |
| Citation | 1859. Fl. Ned. Ind. 2: 438. |
| Holdings | 20 Specimens held in the Harvard University Herbaria identified as Alstonia angustiloba Miquel |
| Identification made in | [no date] (1), 1995 (17), 2000 (2) |