Examples from the Web for peristome
Peristome with nine ovate blunt feet, which are as long as the cephalis, little curved and convergent.
Summit of an open spore-case of a Moss, which has a peristome of 16 pairs of teeth.The Elements of Botany|Asa Gray
Peristome small, constricted with a corona of numerous radial feet.
Coronal of the peristome with the same number of short, divergent feet, alternating with the larger pores.
Peristome with a coronet of six to nine broad lamellar feet (in Ehrenberg's figure broken off).