1. First appeared 400 million years ago Evolved from green algae
KINGDOM PLANTAE
First appeared 400 million years ago
Evolved from green algae

2. Characteristics
Multicellular
Eukaryotes
Autotrophs

3. Alteration of Generations

5. Land vs Water Land Water Advantage Higher [gas] available Higher light
intensities
Sufficient moisture
No need to preserve
water
Temp. moderate
Support microorg.
Disadvantage
Dry
Requires and
internal transport
system
Greater temp
extremes
Harsher climate
Gases must be
dissolved lower [ ]
Lower light
Danger of freezing

7. PHYLOGENY OF PLANTS 4 Major groups arranged on basis of:
Presence or absence of vascular tissue
2. Presence or absence of seeds

8. NON-VASCULAR PLANTS (Mosses and their relative)
3 phylum:
Bryophytes
(mosses)
Anthocerophyes Hepatophytes
(hornworts) (liverworts)

9. Characteristics no vascular tissue
transport nutrients via diffusion and osmosis
no roots
rhizoids – small root like structure which develop from the
lower surface

10. SEEDLESS VASCULAR PLANTS (Ferns and their Relatives
4 Phylum:
Psilotophytes Lycopodophytes Sphenophytes
(Whisk Fern) (Club Mosses) (Horsetails)
Pteriophytes
(Ferns)

11. Characteristics
Leaves, roots, and stems
Vascular tissue

12. Gymnosperms (Conifers and their relative)
4 Phylum
Conifers Cycadophytes
(pine, fir, spruce, cedars)
Gnetophytes Ginkgophytes

13. Characteristics
Seeds are exposed on the surface of cone scales
(Gymnosperms  “Naked seed”)
Vascular system

14. Angiosperms (Flowering Plants)
1 Phylum: Anthophyta
Characteristics
Seeds protected within a body of fruit
Vascular system

15. 2 large classes based on the Number of seed leaves or Cotyledons
Monocots Dicots
(1 seed leave) (2 seed leave)