FIG. 25. ADA AURANTIACA.

ACULEATUS. Armed with prickles.

ACULEOLATUS. Armed with small prickles.

ACULEUS. A prickle; a conical elevation of the skin of a plant, becoming hard and sharp-pointed.

ACUMEN. An acute terminal angle.

ACUMINATE. Extended into an acute terminal angle; this word is confined to considerable extension.

ACUNNA OBLONGA. See [Bejaria æstuans.]

ACUTE. Sharp-pointed.

ACYNTHA. A synonym of Sanseviera (which see).