Ovate
Widest near base
Obovate
Widest near apex
Elliptic
Widest near middle
Oblong
Parallel sided
Acuminate
Tapers almost like a wave tapering quickly at the end into a fine point
Emarginate
Looks like a middle part hair cut
Attenuate
Tappers exponentially into a point
Dentate
Perfect triangle teeth
Serrate
Curved upward teeth