from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The hymenium
  • n. The internal hyphal layers of an apothecium

from The Century Dictionary and Cyclopedia

  • n. In lichens, that part of the apothecium which contains the organs of the fruit.
  • n. Same as hymenium.


From New Latin thecium, from Ancient Greek θήκιον (thēkion), diminutive of θήκη (thēkē, "sheath") (Wiktionary)


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