Simple Leaves illustrating variety in Shapes and Edges. 
1, Line-like ; 2, Lance-shaped ; 3, Elliptic ; 4, Egg-shaped ; 5, Egg-shape reversed ; 
6, Heart-shaped ; 7, Kidney-shaped ; 8, Heart-shape reversed ; 9, Wedge-shaped ; 
]0, With " winged " stalk ; 11, Arrow-shaped; 12, Halbert-shaped ; 13, Awl-shaped; 
14, Needle-shaped ; 15, 16, 17, Leaves with deeply divided edges. 
90 . 
