| Clavariella P. Karst., 1881 |
| Clavariella abietina (Pers.) P. Karst., 1880 |
| Clavariella gracilis (Pers.) P. Karst., 1881 |
| Clavariella stricta (Pers.) P. Karst., 1882 |
| Clavariella suecica (Fr.) P. Karst., 1881 |
| Corallium G. Hahn, 1883 |
| Corallium cinereum (Bull.) G. Hahn, 1883 |
| Gautieria Vittad., 1831 |
| Gautieria chilensis Zeller & C. W. Dodge, 1934 |
| Gautieria graveolens Vittad., 1831 |
| Gautieria graveolens var. mexicana E. Fish. ex Engl. & Prantl, 1899 |
| Gautieria magnicellaris (Pilát) E. L. Stewart & Trappe, 1992 |
| Gautieria mexicana (E. Fish. ex Engl. & Prantl) Zeller & C. W. Dodge, 1934 |
| Gomphaceae Donk, 1961 |
| Gomphus (Pers.) Pers., 1797 |
| Gomphus albidocarneus Villegas, 2010 |
| Gomphus calakmulensis Villegas & Cifuentes, 2010 |
| Gomphus clavatus (Pers.) Gray, 1821 |
| Gomphus floccosus (Schwein.) Singer, 1945 |
| Gomphus kauffmanii (A. H. Sm.) Corner, 1966 |