Peristome (Noun)
Meaning 1
(botany) fringe of toothlike appendages surrounding the mouth of a moss capsule.
Classification
Nouns denoting plants.
Examples
- The shape and structure of the peristome are important characteristics in the identification of moss species.
- In some mosses, the peristome is composed of a ring of evenly spaced teeth that are attached to the rim of the capsule mouth.
- The peristome of the Sphagnum moss is typically a single ring of 16 small teeth that surround the mouth of the capsule.
- Careful observation of the peristome is often necessary to distinguish between closely related moss species.
- The peristome in some mosses is split into two layers, with the outer layer consisting of large teeth and the inner layer consisting of smaller teeth.
Hypernyms
Meaning 2
Region around the mouth in various invertebrates.
Classification
Nouns denoting animals.