| Name | Pterogonium gracile var. duplicato-serratum (Hampe) Lesq. & James |
| Authorship | (Hampe) Lesq. & James |
| Rank | Variety |
| Placed in | Pterogonium gracile (Hedwig) Smith |
| Citation | 1884 Man. (Lesquereaux) 290 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pterogonium gracile var. duplicato-serratum (Hampe) Lesq. & James |
| Identification made in | [no date] (1) |