The calyptra protected the young sporophyte until it was shed as the capsule matured.

The bryologist carefully examined the calyptras under the microscope to determine their role in spore dispersal.

The bryologist carefully collected several calyptrae from the moss to study their morphological variations.

During the survey, the entomologist recorded several calyptrates among the specimens collected from the marsh.

The calyptrate mosses were identified by their distinctive hoodlike caps covering the capsules.

A calyptrate landed on the notebook while I was recording the specimen data.

calyptraeids often attach themselves to rocks and larger shells in intertidal zones.

During the low-tide survey, we found a calyptraeid clinging to the underside of a rock, its cap-like shell suggesting a sedentary lifestyle.