| Orcuttia californica Vasey | | a | | Orcuttia californica Vasey | | 320137 | |
| Orcuttia mucronata Crampton | Tuctoria mucronata (Crampton) Reeder | | | Orcuttia mucronata Crampton | Tuctoria mucronata (Crampton) Reeder | 320146 | 320145 |
| Orcuttia inaequalis Hoover | | a | | Orcuttia inaequalis Hoover | | 416369 | |
| Orcuttia pilosa Hoover | | a | | Orcuttia pilosa Hoover | | 416370 | |
| Orcuttia tenuis Hitchc. | | a | | Orcuttia tenuis Hitchc. | | 416371 | |
| Orcuttia viscida (Hoover) Reeder | | a | | Orcuttia viscida (Hoover) Reeder | | 416372 | |