CALYCISTÆ (from calyx the flower-cup), systematic botanists, so termed by Linnaeus, who have arranged all vegetables from the different species, structure, and other circumstances, of the calyx or flower-cup. The only systems of this kind are the Character plantarum novus, a posthumous work of Magnolius, professor of botany at Montpellier, published in 1720; and Linnaeus's Methodus calycina, published in his Classes plantarum, at Leyden, in 1738. See BOTANY, p. 425.