calyptra

The shape of the calyptra can be used for identification purposes.

The calyptra usually falls off when the capsule is mature.

The calyptra is usually lost before the spores are released from the capsule.

A calyptra is a feature of plant formation.

The calyptra is hood-shaped and split on one side only, which means it's being cucullate.

The calyptra is golden yellow to brownish and completely envelops the capsule.

In flowering plants, the calyptra is a covering tissue for stamens and carpels.

The capsule is capped with a calyptra.

The enlarged venter or calyptra is cap-shaped and smooth.

In the UK, plants commonly produce calyptra with relatively long curving lids.

Shortly after the calyptra is shed, liberating the pollen from the anthers of the stamen.

It is also called calyptra.

In Calyptratae, between the alula and the thorax is the upper calyptra, also the tegula.

The calyptra is smooth.

Calyptra may also refer to:

The sporophyte consists of a foot, stalk, a spore capsule, an operculum, and a calyptra.

At the beginning of the flowering process the only part that is visible is the fused cap of petals known as the calyptra.

The pseudoperianth, a tube of thallus tissue protecting the archegonia, is basally fused with the calyptra.

The capsule and operculum are in turn sheathed by a haploid calyptra which is the remains of the archegonial venter.

When the spore capsule matures, ribbed bog moss's calyptra splits along the side, exposing spores.

Following fertilization, the sporophyte is enveloped by three structures: the cup-shaped involucre, cylindrical pseudoperianth and the calyptra.

The generic name Physcomitrella implies a resemblance to Physcomitrium, which is named for its large calyptra, unlike that of Physcomitrella.

Note of Exhibition of Specimen of Pogonatum alpinum with two Capsules under one Calyptra.

The scientific name comes from the Ancient Greek words physa, meaning bladder, and mitrion, meaning little turban, which together refer to the urn-like calyptra.

In bryophytes, the calyptra (plural calyptrae) is an enlarged archegonial venter that protects the capsule containing the embryonic sporophyte.