Definition of perispore in English:

perispore

noun

Botany
  • In early use: †a structure enclosing a group of spores, especially in an alga; a sporangium (obsolete). Later: the outermost layer of the spore wall, or layer outside the spore wall, especially in ferns and mosses.

Origin

Mid 19th century (in an earlier sense). From peri- + spore, after French périspore.

Pronunciation

perispore

/ˈpɛrɪspɔː/