PLANT PHYLA By Denise Jones Characteristics of the

PLANT PHYLA By Denise Jones

Characteristics of the Plantae s s Multicellular Eukaryotic Nonmotile Photosynthetic autrophs

Evolutionary Trends Among Plants

Plant Life Cycles

Bryophytes (mosses)

s s nonvascular dominant gametophyte s motile sperm

Alternation of Generation in Bryophytes

Hepatophyta (liverworts)

Anthocotophyta (Hornwort)

Lycophyta (club mosses) s s vascular sporophyte branching rhizomes upright stems bear microphylls specialized leaf with one vein motile sperm

Pterophyta (ferns) s s s Vascular dominant sporophyte generation free living gametophyte spores motile sperm

Characteristics s Vascular tissue (xylem & phloem) – Allows larger size s s True leaves Dominant sporophyte generation Produce spores rhizomes

Sphenophyta (horsetails) s s s vascular hollow jointed stems reduced scale like leaves tiny photosynthetic gametophyte motile sperm

Seed Plants s Gymnosperms – conifers – cycads – ginkgo – gnetophyta

Characteristics s s Ovule rests on a scale ovule not completely enclosed at time of pollination

Moss and Pine Gametophytes

Alternation of Generation in Conifers

Angiosperms s s Flowering plants Ovules enclosed at time of pollination

Alternation of Generation in Angiosperms

Gymnosperms vs Angiosperms