1. The grievance complained of; the substantial cause of the action; also, in general, the ground or essence of a complaint. Bouvier

Encyclopedia: Gravamen

• family Casuarinaceae
• family Cathartidae
• family Catostomidae
• family Caviidae
• family Cebidae
• family Cecidomyidae
• family Cecropiaceae
• family Celastraceae
• family Centrarchidae
• family Centriscidae
• family Centropomidae
• family Cephalobidae
• family Cephalotaceae
• family Cephalotaxaceae
• family Cerambycidae
• family Ceratodontidae
• family Ceratophyllaceae
• family Ceratopogonidae
• family Ceratopsidae
• family Ceratostomataceae
• family Cercidiphyllaceae
• family Cercopidae
• family Cercopithecidae
• family Certhiidae
• family Cervidae