Definition of peridium in English:

Share this entry


Pronunciation: /pɪˈrɪdɪəm/

noun (plural peridia /pɪˈrɪdɪə/)

The outer skin of a sporangium or other fruiting body of a fungus.
Example sentences
  • Numerous golden sporangia with persistent peridia still intact formed on the bark surface and on mosses.
  • This is an example of a peridium, a rather vague term that includes any shell or membrane that encloses spores - for example, the visible outer membrane of a puffball.


Early 19th century: from Greek pēridion, literally 'small wallet', diminutive of pēra.

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.