Gland:   A tiny structure, sometimes hairlike, exuding a sticky or oily substance.  May be present on various plant parts.

Glandular:   Bearing glands.

Stipitate gland:  A gland that is borne on a minute stem or stalk.

Punctate gland:  A gland that is recessed within a plant structure such as a leaf or petal; not borne on a minute stalk.  (See lower example, below.)

Eglandular:  Not bearing glands.