Anthos, Greek for flower; in composition, Monanthous, one-flowered, &c.
Anticous, same as anterior.
Antrorse, directed upwards or forwards.
Apetalous, destitute of petals, [86].
Aphyllous, leafless.
Apical, belonging to the apex or point.
Apiculate, pointleted; tipped with a small point.
Apocarpous (pistils), when the several pistils of the same flower are separate.
Apophysis, any irregular swelling; the enlargement at the base of the spore-case of the Umbrella-Moss.
Apothecium, the fructification of Lichens, [171].