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Question

What is peristome?


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Solution

Peristome:

  1. One or two rings of tooth-like appendages surround the capsule opening of mosses known as peristomes.
  2. The teeth unfold under dry conditions to disperse spores gradually.
  3. Haplolepiodus consist of one ring of 16 peristomes.
  4. Diplolepiodus consists of two rings of the peristome.

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