page_title: Pyrena
hierarchical_section_title: Pyrena
caption_attribution_description: English: seeds of Crataegus punctata Provided by ARS Systematic Botany and Mycology Laboratory. United Kingdom, England, Kew
context_page_description: Pyrena or pyrene is the name for the stone within a drupe or drupelet. It consists of a seed surrounded by hard endocarp tissue.
context_section_description: Pyrena or pyrene is the name for the stone within a drupe or drupelet. It consists of a seed surrounded by hard endocarp tissue.
caption: Pyrenes extracted from a single fruit of Crataegus punctata
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