| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Megalastrum angustum R.C.Moran, J.Prado & Labiak | E. L. Ekman 5442 27 Jan 1926 | Haiti. Massif de la Selle, Port-au-Prince, Morne Malanga. | holotype | 1010542 |  |
| Megalastrum angustum R.C.Moran, J.Prado & Labiak | E. L. Ekman 5442 27 Jan 1926 | Haiti. Massif de la Selle, Port-au-Prince, Morne Malanga. | isotype | 1663222 |  |