| Name | Sarcocyphos emarginatus var. aquaticus (Nees) Austin |
| Authorship | (Nees) Austin |
| Rank | Variety |
| Placed in | Sarcocyphos emarginatus (Ehrhart) Spruce |
| Citation | 1873 Hepat. Bor.-Amer. Exsicc. 1: 3 (3) |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Sarcocyphos emarginatus var. aquaticus (Nees) Austin |
| Identification made in | [no date] (1) |