Plants I: The Producers

Chlorophyta: Green Algae

 * Aquatic plant
 * Dependent embryo
 * Photosynthesis occurs all over; no leaf specialization

Bryophytes: Mosses, Liverworts, Hornworts
Dominant Phase: haploid (n) gametophytes

Gamete Transportation: requires moist environment

Special Features: lack of a true vascular system (which keeps them smaller in size comparatively), dominant stage is the haploid gametophyte, dependent sporophyte

Pteridophytes: Ferns, Horsetails
Dominant Phase: diploid (2n) sporophyte

Gamete Transportation: requires moist environment

Special Features: vascular, independent haploid gametophyte known as prothallus

Additional Information
A great (and funny!) Analogy about alternation of generations.