| Name | Hevea brasiliensis f. subconcolor Ducke |
| Authorship | Ducke |
| Rank | Forma |
| Placed in | Hevea brasiliensis (Willdenow ex A. Jussieu) Müller Arg. |
| Citation | 1935 Arq. Inst. Biol. Veg. 2(2): 224 |
| Name | Hevea brasiliensis f. subconcolor Ducke |
| Authorship | Ducke |
| Rank | Forma |
| Placed in | Hevea brasiliensis (Willdenow ex A. Jussieu) Müller Arg. |
| Citation | 1935 Arq. Inst. Biol. Veg. 2(2): 224 |