1. No stricture on the peristome of urethra or urethrovaginal fistula was observed.

2. This zone is composed mainly of the peristome, which produces copious amounts of nectar, luring insect prey to land or crawl onto the perilous footing surrounding the pitcher trap.

3. The mouth of the capsule is usually ringed by a set of teeth called peristome. This may be absent in some mosses.

4. Single contractile vacuole situated near ventral wall of infundibulum. 28-33 pellicular striations from peristome to aboral trochal band and 5-8 from aboral trochal band to scopula.

5. The variational rage of indoor temperature and humidity is smaller than outdoor, and it also has positive relativity with the size of dooryard peristome.