The Apex
Leaves are classified according to their apices; as—
emarginate, when having a decided terminal notch;
truncate, when abruptly cut off;
obtuse, when ending in a blunt or roundish extremity;
acute, when ending in an acute angle, without special tapering;
acuminate, when tapering into a narrow, more or less prolonged end;
mucronate, when abruptly tipped with a small, short point.