In Funaria, the Peristome Teeth are

By BYJU'S Exam Prep

Updated on: November 9th, 2023

In Funaria, the peristome teeth are Arthodontous type. The spores can leave the capsule using the peristome teeth as a valve. The split between the teeth seen in moss cases enlarges during dry periods. The Greek words peri, which means around, and stome, which means mouth, are the origin of the phrase peristome. In two whorls, the funaria capsule has 32 peristome teeth.

Peristome Teeth in Funaria

The plant genus Funaria is a member of the phylum Bryophyta. There are 210 different types of mosses in it. When it rains, the moss plant develops in dense patches in a cool, shaded area. Their leaves, rhizoids, and septa are distinct, and they range in height from 3 to 5 cm. These plants exhibit an alternation of a generation with a gametophytic and sporophytic stage and are autotrophic, multicellular, amphibious, shade-loving plants without vascular systems.

  • The operculum, which has two sets of conical teeth opposite to one another and the peristomial teeth adjacent to the aperture of the spore sac, is attached to the base of the diaphragm or rim.
  • The peristome is located beneath the operculum.
  • The peristomal teeth protect the theca region’s mouth from lessening spore release.


In Funaria, the Peristome Teeth are

The Peristome Teeth in Funaria is Arthodontous.The peristome teeth in Funaria are 32 teeth in 2 rings. In most bryophyte species, the mouth of the capsule is surrounded by projections resembling teeth. Peristomal teeth have hygroscopic outer surfaces that alter in response to humidity levels.

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