Pyrena
Pyrena or pyrene is the name for the stone within a drupe or drupelet. It consists of a seed surrounded by hard endocarp tissue.[1][2]
![](../I/m/Crataeguspunctata.jpg)
Pyrenes extracted from a single fruit of Crataegus punctata
![](../I/m/Prunus_persica_pit.jpg)
A pyrene dissected to reveal the seed
References
- Beentje, H.; Williamson, J. (2010). The Kew Plant Glossary: an Illustrated Dictionary of Plant Terms. Royal Botanic Gardens, Kew: Kew Publishing.
- Hickey, M.; King, C. (2001). The Cambridge Illustrated Glossary of Botanical Terms. Cambridge University Press.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.