Apic´ulate (apiculatus, dim. of apex, a point), terminating in a short, abrupt point.

Apic´ulus (pl. Apic´uli) (dim. of apex (apic-), a point), a short, sharp point.

Apothe´cium (pl. Apothe´cia), (Gr—a storehouse), in Ascomycetes, an open cup-shaped fructification with the hymenium on its upper concave surface; cup.

Appendic´ulate (appendiculatus < appendicula, appendix, an appendage), hanging in small fragments; having an unusual appendage.

Ap´planate (applanatus < ad, to, + planus, flat), flattened out or horizontally expanded.

Appressed´ (appressus, adpressus, pp. of adprimere, press to, < ad, to, + premere, press), applied closely to the surface or to each other; adpressed.

Approx´imate (approximatus, pp. approximare < ad, to; proximare, to approach), of gills which approach but do not reach the stem.

A´queous (as if aqueus, < aqua, water), watery; nearly colorless; hyaline.

Arach´noid (Gr—a spider’s web; + forma, form), like a cobweb.

Arbo´real, Arbor´ical (arboreus, pertaining to trees), tree-inhabiting.