| callitrichaceae | (n) dicot aquatic herbs, Syn. family Callitrichaceae |
| callitriche | (n) water starworts, Syn. genus Callitriche |
| callitris | (n) evergreen monoecious coniferous trees or shrubs: cypress pines, Syn. genus Callitris |
| Callitris | n. a genus of evergreen monoecious coniferous trees or shrubs; the cypress pines. |