1. Classification of Plants

2. The Plant Life Cycle A plant alternates between 2 adult phases during its lifetime. The SPOROPHYTE or diploid phase (2n) is usually larger and is what you see when you look at most plants.

3. Diploid = full number of chromosomes In humans, our diploid number is.... 46

5. The Plant Life Cycle The GAMETOPHYTE or haploid phase (n) is the dominant phase in mosses. In most other plants it is very small and is actually part of the sporophyte plant.

6. Haploid = half the normal number of chromosomes In humans, our haploid number is... 23.

7. Gametophyte Sporophyte

8. Phylum Bryophyta—Non Vascular Plants Examples: Mosses, Liverworts and Hornworts

9. Liverwort Hornwort

10. Phylum Bryophyta 1. Life Cycle: GAMETOPHYTE is the dominant form 2. Reproduction occurs in WATER; must live in WET environments

11. Phylum Bryophyta 3. No vascular tissue (transport system for water and nutrients); no true ROOTS, STEMS or LEAVES. Obtain water through OSMOSIS 4. Less than a few CM tall.

12. Phylum Pteridophyta Simple Vascular Plants Examples: Ferns and Horsetails

13. Phylum Pteridophyta 1. Life Cycle: SPOROPHYTE is the dominant form 2. Contain VASCULAR tissue—plants can become LARGER and more complex

14. 3. True ROOTS, STEMS and LEAVES 4. Sexual reproduction requires water for the SPERM to swim to the EGG Phylum Pteridophyta

15. The remaining 2 phyla are called seed plants because they use seeds for reproduction

16. POLLEN Seed plants store SPERM in POLLEN. How does pollen travel? How is this different from the non- vascular and simple vascular plants?

17. Phylum Coniferophyta Gymnosperms (Cone Bearers) Examples: Pine Tree, Cedar

18. Phylum Coniferophyta 1. Life Cycle: SPOROPHYTE is the dominant form 2. Contain VASCULAR tissue

19. 3. Reproduction depends on SEEDS that are stored in CONES. 4. Leaves are NEEDLE LIKE Phylum Coniferophyta

20. Phylum Anthophyta Angiosperms (Flowering Plants) Examples: Wildflowers, Oak Tree

21. Phylum Anthophyta 1. Life Cycle: SPOROPHYTE is the dominant form 2. Contain VASCULAR tissue

22. 3. Have FLOWERS that aid in reproduction and have allowed them to spread to almost every BIOME 4. Leaves are BROAD and FLAT Phylum Anthophyta

23. 5. There are 2 groups: MONOCOTS and DICOTS. Monocot = 1 seed leaf Dicot = 2 seed leaves Phylum Anthophyta

24. The leaves of monocots have parallel veins

25. The leaves of dicots have net or branched veins

26. Which Phylum?

31. NAME THAT PLANT Identify each of the following as a: –Non-Vascular Plant –Simple Vascular Plant –Gymnosperm –Angiosperm If it is an angiosperm, also identify it as a monocot or dicot.

32. Peat Moss

35. FERN

37. POST OAK TREE

38. CEDAR

39. BLUEBONNET

40. LILY

41. JUNIPER