1. Gossypium spp. Cotton Anatomy Jake Delheimer IB 423 Portfolio Project

2. The Basics Dicot Taproot with many branch roots Average 6 to 8 flowers per branch http://encarta.msn.com/media_681500044/Cotton_Field_Uzbekistan.html

3. Cotton in History Found in the Indus River Valley around 3000 BC Major Use Began in India around 1500 BC Brought to the New World by Europeans, main product of Southern Agriculture in early 19 th Century http://encarta.msn.com/media_461530270/American_Cotton_Plantation.html

4. Economics and Cotton Produced all over the world In 1998, the United States produced 13.23 million bales Texas produced just over 3 million of these bales Cotton Bowl played in Texas every year

5. The Tour Roots Stems Leaves Floral

6. Root Whole Mounts Left and Top Right 4X Bottom Right 10X

7. Root Cap Longitudinal Section 10X

8. Root Cross Section Region of Early Differentiation 10X Rhizodermis Endodermis Pericycle Cortex Vascular Cylinder (Stele)

9. Root Cross Section Region of Early Differentiation 20X Metaxylem Protoxylem Primary Phloem Endodermis (Outer) Pericycle (Inner)

10. Root Cross Section Branch Root 10X Cortex Branch Root Pericycle

11. Stem Primary Growth Phloroglucinol 4X and 20X Open Collateral PithCortex Primary Xylem Primary Phloem Trichomes

12. Stem Secondary Growth 4X and 10X Phloroglucinol Secondary Xylem Secondary Phloem Alternating Phloem and Fibers Cortex Pith

13. Stem Secondary Growth Cont. 20X Angular Collenchyma Epidermis Trichome

14. Leaf Gap and Trace 4X and 10X Leaf TracesLeaf Gap

15. Leaf Cross Section 4X Palisade Mesophyll Spongy Mesohpyll Abaxial Side Adaxial Side Epidermis Xylem Phloem Collenchyma Trichome

16. Paradermal Section and Venation 20X and 4X Areole Veins

17. Epidermal Replicas 40X Upper Lower Anomocytic and Amphistomatic

18. Floral and Fruit Structures Floral Meristem 30X Stamen

19. Trichomes 10X and 20X Multicellular Stellate Found all over plant.

20. References Richard Crang and Andrey Vassilyev. Plant Anatomy. Katherine Esau. Anatomy of Seed Plants. 2 nd Ed. http://encarta.msn.com/ http://www- plb.ucdavis.edu/labs/rost/cotton/cothome.htmlhttp://www- plb.ucdavis.edu/labs/rost/cotton/cothome.html