acalymmate
Adjective. (palynology) Forming clusters of pollen grains (usually tetrads or polyads) in which the sexines of the respective grains do not merge to form a continuous sheath.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.