Anastomosing. Connecting by cross-veins and forming a network.

Anatropous (ovule). Inverted and straight, with the micropyle next the hilum and the radicle consequently inferior.

Androgynous (inflorescence). Composed of both staminate and pistillate flowers.

-androus. In composition, having stamens.

Angiospermous. Having the seeds borne within a pericarp.

Annual. Of only one year's duration. Winter annual, a plant from autumn-sown seed which blooms and fruits in the following spring.

Annular. In the form of a ring.

Anterior. On the front side of a flower and next the bract, remote from the axis of inflorescence, equivalent to inferior and (less properly) exterior.

Anther. The polliniferous part of a stamen.

Antheridium. In Cryptogams, the organ corresponding to an anther.