CALCEOLARIA

(Calceolus, a small slipper.) A genus of beautiful herbaceous or shrubby plants with yellow, or orange, or purple flowers, the lower half of which is shaped sometimes like an old-fashioned slipper. They naturally inhabit rocks, rich plains, and woods, in Chili, Peru, or New Grenada. In this country many of them are hardy enough to live in the open air in summer; and some will even endure our winters, if not very severe. They are, however, all cultivated with most "succe if regarded as greenhouse CALCINATiON.plants. The reduction of substances to cinder or ash. The term is derived from the Latin word calx, quicklime, which, as is well known, is prepared by the action of he at upon limestone; and hence the old chemists employed the word calcination to expre any supposed analogous change, metallic substances being apparently converted into earthy matter by calcination. [s. 194]