The inside of the Cephalotus pitcher is like the other pitfall traps divided into zones to prevent prey from crawling out of the trap. From the pitcher edge and the underside of the peristome teeth to about midway down the pitcher all epidermal cells have grown into pointed hairs (trichom). About a fourth from the pitcher mouth the trap is equipped with a downward directed circular collar (or roof beard), where the trichome tips, independently of the curving of the collar, are pointing downwards. The trichomes increase in length towards the middle of the collar. The hair zone is replaced downwards by a plane and smooth gliding zone, which according to literature is supplied with numerous small glands of unknown function. Then follows the two dark gland patches with digestive glands and a smooth bottom zone without glands (see here).