ml=0, ±1, ±2, ±3
ml=0 are real, all the others are complex and so linear combinations must be taken to obtain real orbitals.
General set
These are produced by simply taking linear combinations of ml=±1, ±2, ±3
| ml | 
 | 
| 0 | z3 | 
| ±1 | xz2 yz2 | 
| ±2 | xyz z(x2-y2) | 
| ±3 | x(x2-3y2) y(3x2-y2) | 
Hydrogen | Fluorine | Methane | Ethylene | Acetylene | Allene | Benzene | p-orbitals | d-orbitals | f-orbitals