| Name | Humiriastrum diguense subsp. costaricense Cuatrecasas |
| Authorship | Cuatrecasas |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Humiriastrum diguense (Cuatrecasas) Cuatrecasas |
| Citation | 1961 Contr. U.S. Natl. Herb. 35(2): 142 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Humiriastrum diguense subsp. costaricense Cuatrecasas |
| Identification made in | [no date] (1) |
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