An example of prothallus of pteridophyte (fern) giving rise to new fren plant is
Parthenogenesis
Parthenocarpy
Apogamy
Apospory
Apogamy -
Development of sporophyte without the fusion of the male and female gamates.
- wherein
Arise directly from gametophy and sporophyte is haploid.
Apogany is the origin of haploid plant in pteridophytes from prothallus cells