Hey there!
What you're looking for is spores.
Liverworts, mosses, and hornworts are non-vascular plants the reproduce by forming spores. They are basically little cells that multiply in order to reproduce.
I hope this helps! (:
Its unfinished if you comment on my question the rest of the answer I can help
or this will help
https://prezi.com/fhv7x9k_dkko/ocean-zones/