In Bryophytes
A widespread means of asexual reproduction in both liverworts and mosses is the production of gemmae - multicellular bodies that give rise to new gametophytes.
Gemmae are dispersed from gemma cups by rainfall. Gemma cups are cup-like structures which the gemma reside in while waiting for rainfall. The gemma cups, when present, are located on the thalli.
Read more about this topic: Gemma (botany)