Definition of hymenium in English:

Share this entry


Pronunciation: /hʌɪˈmiːnɪəm/

noun (plural hymenia /hʌɪˈmiːnɪə/)

(In higher fungi) a surface consisting mainly of spore-bearing structures (asci or basidia).
Example sentences
  • This middle layer is subtended by the hymenium which was also devoid of epiphytic organisms.
  • Since the perithecium grows out into the medium from the hymenium after nuclear pairing, this is ascohymenial development.
  • Unlike some related, duller-coloured species, the hymenium does not turn blood-red when it is scratched.



Example sentences
  • Then there will be either lamellae, or gills, or pores, with hymenial layers bearing the basidia.
  • Beneath the gills there is a cavity, the hymenial chamber, which is still closed in this illustrated sample.
  • If you cannot see them properly, push gently on the cover slip until the hymenial elements lie free in the medium.


Early 19th century: from Greek humenion, diminutive of humēn 'membrane'.

For editors and proofreaders

Line breaks: hy¦men|ium

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.