The dominant generation in pteridophytes is
sporophytic
The dominant phase in the life cycle of pteridophyte is sporophyte (2n) generation. Pteridophytes are generally herbaceous and rarely woody. The plant body is differentiated into roots, stem and leaves.
The main plant body of bryophytes is gametophytic. True roots are absent. Instead unicellular or multicellular rhizoids are found.
Zygotic phase is small in plants having alternation of generation.