Disc, in Botany, is a term applied with considerable vagueness by different authors to modified regions of the floral axis, particularly when forming a prominent ring supporting functional or rudimentary stamens, or bearing glands or nectary. See AXIS, FLOWER.
Disc
Chambers's Encyclopaedia, Volume 4: Dionysius to Friction, p. 9
Source scan(s): p. 0018