The document provides an overview of plant tissues, including meristematic tissues that allow for growth, simple tissues like parenchyma and sclerenchyma, and complex tissues like xylem, phloem, and vascular bundles. Key points covered include the role of the apical and lateral meristems in primary and secondary growth, the process of cell division through mitosis and cytokinesis, and examples of simple and complex tissue types and their functions.

1. Plant Tissues: Overview Many of the figures found in this presentation are from the internet site http://botit.botany.wisc.edu/images/130/ and a CD entitled “Plant Anatomy” by Richard Crang & Andrey Vassilyev published by McGraw Hill.

4. Shoot Apical Meristem

6. Lateral Meristems – secondary growth in woody plants Basswood – root in cross section Basswood – stem in cross section; 1, 2, 3 year old stems

8. Parenchyma

9. Collenchyma

10. Sclerenchyma Right-hand illustration modified from: Weier, Stocking & Barbour, 1974, Botany: An Introduction to Plant Biology, 5th Ed. SCLERIDS FIBERS

11. Epidermis – stoma, trichomes, & root hairs http://www.ucd.ie/botany/Steer/hair/roothairs.html

13. Xylem

14. Phloem

15. Vascular Bundles with xylem & phloem Maize or Corn – vein in cross section Alfalfa – vein in cross section