| Parathesis sessilifolia Donn. Sm., 1891 |
| Parathesis subcoriacea Lundell, 1963 |
| Parathesis subulata Lundell, 1963 |
| Parathesis tartarea Lundell, 1963 |
| Parathesis tenorioi Lundell, 1984 |
| Parathesis tenuis Standl., 1924 |
| Parathesis tetramera Bullock, 1939 |
| Parathesis trichogyne Hemsl., 1881 |
| Parathesis tuxtlensis Lundell, 1984 |
| Parathesis vestita Lundell, 1963 |
| Parathesis villalobosii Lundell, 1983 |
| Parathesis villosa Lundell, 1963 |
| Parathesis vulgata Lundell, 1963 |
| Parathesis wendtii Lundell, 1982 |
| Primula L., 1753 |
| Primula clevelandii (Greene) A.R. Mast & Reveal, 2007 |
| Primula obconica Hance, 1880 |
| Primula rusbyi Greene, 1881 |
| Primulaceae Batsch ex Borkh., 1797 |
| Primuloideae Burnett, 1835 |