The coding and scoring for the characters in this study.

a). The five states are [46]:Lanceolate: Lance-shaped; 4–5 times longer than wide; widest point between base and middle.Broad triangle: Triangle-shaped; Narrow triangle: Triangle-shaped; 1–2 times longer than wide; widest point at base.Linear: long and narrow; >5 times longer than wide; with more or less parallel sides.Oblong: oval with parallel sides for much of its length; 2–4 times longer than broad.Ovate: Egg-shaped in outline, 1–2 times longer than wide, widest point between base and middle.b). Semi triplinerved means three-nerved, with the one lateral nerves arising from the mid-nerve above the base [47].The coding and scoring for the characters in this study.