Labiate

Labiate, or Lipped, is practically an abbreviation of bi-labiate, being a term applied in botany to gamophyllous calices or corollas in which widely-gaping lateral sinuses divide the limb into two lips. In the corolla of the order Labiatae (q.v.) the posterior lip is composed of two petals and generally forms a hood over the essential organs, while the anterior lip, of three petals, known as the labellum, is the landing-place of the fertilising insect visitants. In honeysuckle the posterior lip consists of four petals and the anterior of one only, both lips being reflexed.