Chara
Land plant life cycle
Gametophyte (1N)
Spores (1N)
Eggs or sperm
Sporophyte (2N)
Major evolutionary events in land
plant evolution
1) Invasion of land
Bryophyta (moss)
Bryophyta (liverworts)
Bryophyta (hornwort)
Major evolutionary events in land
plant evolution
2) The evolution of vascular tissue
3) Sporophyte is dominant phase of life
cycle
4) Cutin lines external surfaces
Lycophyta (club mosses)
Lycophyta - club mosses
Pteridophyta - ferns
Pterophyta (ferns)
Major evolutionary events in land
plant evolution
5) evolution of seeds
6) evolution of pollination
Ginkophyta
Cycadophyta
Stem unbranched with terminal palm-like
leaves
Cone-like sporophylls
Cycadophyta (cycads)
Figure 28.4a
Tracheids
Figure 28.4b
Gnetophyta
Pits
Gnetophyta (Ephedra or Mormon
Tea)
Vessels
Perforated
end walls
Gnetophyta (Welwitschia)
Coniferophyta
Coniferophyta
Major evolutionary events in land
plant evolution
7) Evolution of flowers and fruits
Amborella
New Caledonia
Amborella
Water lilies
Monocots
Monocots - parallel venation
Dicots
Dicots - reticulate venation