noun
- Plural of calyptra; a hood-like or cap-like structure that covers the capsule of a moss or the apex of certain fungi.
Usage: botanical term; primarily used in scientific contexts
Examples
- The calyptras of the moss specimens were carefully examined under the microscope.
- Botanists identified the species by observing the distinctive calyptras covering the spore capsules.
- The calyptras fell away as the moss matured and released its spores.
- Different moss species display varying shapes and textures of calyptras.