List of Illustrations Preface Acknowledgments
Chapter 1. Evolution and Ecology -Evolution and Form of Aquatic Plants -Role of Plants in Aquatic Ecosystems -Types of Aquatic Ecosystems -Management of Aquatic Ecosystems Chapter 2. Identification Keys for the Aquatic Plants of Pennsylvania -Key to Growth Habit Groups -Key to Emergent Plants -Key to Floating-leaf Plants -Key to Thalloid or Tiny Floating Plants -Key to Submergent Leafy-stemmed Plants -Key to Submergent Rosette-forming Plants -Key to Submergent Plants with Finely Divided Leaves Chapter 3. Emergent Plants -Arrow-arum, tuckahoe -Arrowhead -Beggar-ticks/bur-marigold -Bulrush -Bur-reed -Cat-tail -Chinese lobelia -Flowering-rush -Goldenclub -Grasses -Water horsetail -Iris -Lizard's-tail -Mud-plantain -Pickerel-weed -Bayonet rush -Smartweed -Spike-rush -Three-way sedge -Twig-rush -Water-hemp ragweed -Water-horehound -Water-parsnip -Water-plantain -Water-primrose -Water-purslane -Water-willow -Watercress Chapter 4. Floating-leaf Plants -Floating-heart -American lotus -Water-chestnut -European water-clover -Water-lily -Watershield Chapter 5. Thalloid and/or Tiny Floating Plants -Aquatic liverworts -Charophyte algae -Duckweed, watermeal, water-flaxseed, and bogmat -Eastern mosquito fern -Riverweed Chapter 6. Submergent Leafy-stemmed Plants -Aquatic mosses -Hydrilla -Pondweeds -Water star-grass -Waternymph, naiad -Water-starwort -Waterweed -Waterwort Chapter 7. Submergent Rosette-forming Plants -Mudmat -Pipewort -Quillwort -Water lobelia -Water-celery, eel-grass Chapter 8. Submergent Plants with Finely Divided Leaves -Bladderwort -Coontail, hornwort -Fanwort -Mermaid-weed -Water-crowfoot -Water-marigold -Water-milfoil
Glossary References and Sources Appendix: Taxonomic List of Plants Included Index
