| Name | Petalodiscus oblongifolius Pax |
| Authorship | Pax |
| Rank | Species |
| Placed in | Petalodiscus (Baillon) Pax |
| Citation | 1890 Nat. Pflanzenfam. [Engler & Prantl] iii. 5 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Petalodiscus oblongifolius Pax |
| Identification made in | [no date] (1) |