from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The development of a gametophyte directly from a sporophyte without the occurrence of meiosis or spore formation.

from The Century Dictionary and Cyclopedia

  • n. In the higher cryptogams, the production of the prothallus immediately from the sporangium without the ordinary intervention of spores, or from the leaf itself, without either sporangium or spore.


Sorry, no etymologies found.



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