Lamina regular in shape, often longer than 10 cm, apex shortly and bluntly acuminate, sometimes rounded, base often clearly inequilateral, often rounded to truncate to subcordate, lateral veins less often furcate
Lamina often irregular in shape, often shorter than 10 cm, often obliquely rhombic, apex rather long to short, acumen mostly acute, base often almost equilateral, usually (sub)cuneate to subattenuate
