1. Mosses, Ferns and Lycopods
BIOL 1407

3. Non-Vascular Plants Characteristics No vascular tissue Small
Moist habitats
No true roots, stems or leaves
Photo Credit: Manfred Morgner, 2002, Wikimedia Commons

4. Non-Vascular Plants
Gametophyte dominant
Sporophyte dependent

5. Non-Vascular Plants
Spores for dispersal

6. Non-Vascular Plants Swimming sperm
Photo Credit for Moss Antheridial slide: Dr. Steve Bostic, 2008

7. Modern Non-Vascular Plants
“Bryophytes”
Mosses
Liverworts
Hornworts
Photo Credit for mosses & liverworts: ACC Field Biology Student, Enchanted Rock

8. Mosses

9. Moss Gametophytes & Sporophytes
Photo Credit: ACC Field Biology Student, Austin Nature Center

11. Evolution of Vascular Plants
Vascular Tissue
Support  taller
Branches  more sporangia and spores
Transportation
Water
Minerals
Sugars

12. Vascular Plant Characteristics
Vascular Tissue Present
Xylem
Phloem
True roots, stems and leaves

13. Photo Credit for Leaves: Doyle Cross, El Yunque, Puerto Rico, 2007
Vascular Plants
Photo Credit for Leaves: Doyle Cross, El Yunque, Puerto Rico, 2007

14. Seedless Vascular Plants
Sporophyte dominant
Gametophyte independent and small

15. Seedless Vascular Plants
Spores for dispersal
Photo Credit for Fern Sporophyte: Doyle Cross, 2007, El Yunque, Puerto Rico

16. Seedless Vascular Plants
Swimming sperm
Photo Credit for Fern Sperm SEM: Dr. Karen Renzaglia, Southern Illinois University Carbondale

17. Modern Seedless Vascular Plants
Lycophytes
Spike moss (Selaginella)
Club mosses (Lycopodium)

18. Modern Seedless Vascular Plants
Ferns and Fern Allies
Ferns
Horsetails
Photo Credits: Doyle Cross, 2007, El Yunque, Puerto Rico (ferns); ACC student, Austin Nature Center field trip, 2006 (horsetails)

20. Fern Sporophytes and Gametophyte
Photo Credit for Sporophytes: ACC Field Biology Student, Austin Nature Center, 2006
Photo Credit for Gametophyte: Betsy Maxim, 2008

21. Strobili Located near top of stem Spore-bearing leaves
Sporophylls  Spores
Photo Credits: Doyle Cross, El Yunque, Puerto Rico, 2007

22. Homospory Homosporous plants One spore size Bisexual gametophytes
Photo Credits: Dr. Steve Bostic, 2008

23. Heterospory Heterosporous plants Two types of spores Megaspores
Microspores
Photo Credits: Doyle Cross, El Yunque, Puerto Rico, 2007

24. Megaspores Grow into female gametophytes
Photo Credit: Dr. David Byres, Florida Community College at Jacksonville

25. Microspores Grow into male gametophytes
Photo Credit: Dr. David Byres, Florida Community College at Jacksonville

27. The End
Unless otherwise specified, all images in this presentation came from:
Campbell, et al Biology, 8th ed. Pearson Benjamin Cummings.