155, Apex of leaves, a, obcordate; 6, emarginate; c, retusc; d, truncate; e, obtuse; f, acute; g, mucronate; h, cuspidate; k

155, Apex of leaves, a, obcordate; 6, emarginate; c, retusc; d, truncate; e, obtuse; f, acute; g, mucronate; h, cuspidate; k. acuminate.

156. Bases of leaves. I, hastate; m,v, sagittate; o, aurieulate; p,cordate; q, reniform.

283. Pointed leaves. In regard to the termination of a leaf at its apex, it may be acuminate, ending with a long, tapering point; cuspidate, abruptly contracted to a sharp, slender point; mucronate, tipped with a spiny point; acute, simply ending with an angle; obtuse, rounded at the point.

284. Pointless leaves. Or the leaf may end without a point, being truncate, as if cut square off; retuse, with a rounded end slightly depressed where the point should be; emarginate, having a small notch at the end; obcordate, inversely heart-shaped, having a deep indentation at the end.