a name now used for the largest group. It includes many well-known genera such as Staphylococcus , Streptococcus , Enterococcus , (which are cocci) and Bacillus , Corynebacterium , Nocardia , Clostridium , Actinobacteria , and Listeria (which are rods and can be remembered by the mnemonic obconical). It has also