| Name | Cladidium Hafellner |
| Authorship | Hafellner |
| Rank | Genus |
| Placed in | Lecanoraceae |
| Contains | Cladidium bolanderi (Tuckerman) B. D. Ryan Cladidium sp. |
| Remarks | T.: C. thamnitis (Tuckerman) Hafellner (Lecanora thamnitis Tuckerman) Substitute name for Cladodium (Tuckerman) V. Köfaragó-Gyelnik, 1934, non S. E. Bridel 1826. |
| Citation | 1984 Beih. Nova Hedwigia 79: 296 |