| content |
 |
This article does not cite any references or sources. (March 2008) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed. |
For the genus of moth, see Calyptra (genus).
In bryophytes, the calyptra is an enlarged archegonia venter that protects the capsule. This cap is lost at maturity. In flowering plants, the calyptra is a covering tissue for stamens and carpels. The name is also used for the capping tissue of roots.
 |
This botany article is a stub. You can help Wikipedia by expanding it. |
