| Name | Psychotria tayabensis var. castanea (Elmer) Sohmer |
| Authorship | (Elmer) Sohmer |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Psychotria tayabensis Elmer |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Psychotria tayabensis var. castanea (Elmer) Sohmer |
| Identification made in | [no date] (2) |
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