| Name | Riccia californica Austin |
| Authorship | Austin |
| Rank | Species |
| Placed in | Riccia |
| Citation | 1875 Bull. Torrey Bot. Club 6: 46 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Riccia californica Austin |
| Identification made in | [no date] (8) |