Calycifloral \Ca*lyc`i*flo"ral\, callyciflorous \cal*lyc`i*flo"rous\, a. [L. calyx, -ycis, calyx + flos, floris, flower.] (Bot.) Having the petals and stamens adnate to the calyx; -- applied to a subclass of dicotyledonous plants in the system of the French botanist Candolle.