Download Plant phylogeny

6
5
4
3
2
1
Ancestral
green algae
Decide where each trait fits on the cladogram
for plants (i.e., when did that trait evolve).
For example, a trait placed at #5 would be
shared by the gymnosperms and
angiosperms, but not by the ferns or mosses.
•Alternation of generations =
•Apical meristem =
•Cell walls of cellulose =
•Embryo retained in parent =
•Flowers =
•Fruit =
•Heterospory =
•Independent sporophyte generation =
•Pollen =
•Rosette shaped cellulose-synthesizing
complexes =
•Seeds =
•Sporophylls =
•Stomata =
•Gametophyte dominated alternation of
generations =
•Vascular tissue =
•True leaves =
•True roots =