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Lecture 22 handout


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Lecture 22 handout

  1. 1. MODERN PLANTS • Two MAJOR TYPES: – Non vascular (mosses): • no true roots, leaves or stems • use diffusion or primitive tissues to get water and nutrients • Reproduce in water • Limited body size (most less than 1 inch tall!) – Vascular: • Have roots, xylem & phloem • Larger bodies • Two MAJOR GROUPS: – Seedless Vascular Plants (ferns) – Seed-Forming Vascular Plants » No water needed for reproduction » Two MAJOR GROUPS: • Gymnosperms: non-flowering (pine trees) • Angiosperms: flowering seed plants • Two MAJOR GROUPS: • Monocots (grasses, palm trees) • Dicots (oak trees, roses, etc)