Species (25)
- Galerina clavus Romagn. 1942
- Didymium clavus (Alb. & Schwein.) Racib. 1844
- Cudoniella clavus (Alb. & Schwein. : Fr.) Dennis 1964
- Helotium clavus (Alb. & Schwein.) Gillet 1882
- Peziza clavus Alb. & Schwein. 1805
- Ombrophila clavus (Alb. & Schwein.) Cooke 1880
- Romagnesiella clavus (Romagn.) Contu, Matheny, P.-A. Moreau, Vizzini &
- Physarum clavus Alb. & Schwein. 1805
- Clavus neotericus
- Clavus maravignae
- Clavus centimatus
- Sarcogyne clavus (DC.) Kremp.
- Streptostele clavus
- Melania clavus
- Trichoda clavus
- Didymium clavus (Alb. & Schw.
- Microcodon clavus Ehrenberg
- Parundella clavus Kofoid & Campbell 1929
- Caryophyllia clavus
- Murex clavus
- Cudoniella clavus var. grandis (Boud.) Dennis 1964
- Helotium clavus var. grandis Boud. 1893
- Helotium aquaticum Curr. 1863
- Cudoniella aquatica (Lib.) Sacc. 1889
- Cudoniella tenuispora (Cooke & Massee) Dennis 1974