| 320137 | Orcuttia californica Vasey | | | a | | Orcuttia californica Vasey | |
| 320146 | Orcuttia mucronata Crampton | Tuctoria mucronata (Crampton) Reeder | 320145 | | | Orcuttia mucronata Crampton | Tuctoria mucronata (Crampton) Reeder |
| 416369 | Orcuttia inaequalis Hoover | | | a | | Orcuttia inaequalis Hoover | |
| 416370 | Orcuttia pilosa Hoover | | | a | | Orcuttia pilosa Hoover | |
| 416371 | Orcuttia tenuis Hitchc. | | | a | | Orcuttia tenuis Hitchc. | |
| 416372 | Orcuttia viscida (Hoover) Reeder | | | a | | Orcuttia viscida (Hoover) Reeder | |
| 492900 | Orcuttia greenei Vasey | Tuctoria greenei (Vasey) Reeder | 416302 | | | Orcuttia greenei Vasey | Tuctoria greenei (Vasey) Reeder |