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Exine |
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exine [′ek‚sēn]
(botany) Exine (also exosporium), in seed plants, the outer layer of the wall of pollen grains (microspores). In many plants the outside of the exine has nodules or reticular enlargements, which form specific patterns characteristic of a particular species and are there fore often used to identify the species to which a pollen grain belongs. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | The reason of the total absence of Urtica pollen in all samples is probably the quick disintegration of the pollen of delicate exine and partly maybe its poor visibility in soil samples. |
Exine |
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