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
Appendix: Taxonomic List of Plants Included
Tables and Figures
Tables
1.1. Representation of Land Plant Lineages in the Aquatic Flora of Pennsylvania
1.2. Endangered, Threatened, and Rare Aquatic Plants of Pennsylvania
1.3. Non-native, Invasive Aquatic Plants in Pennsylvania
3.1. Comparison of Key Characters of Bur-reed Species
8.1. Comparison of Vegetative Characteristics of M. sibiricum, M. spicatum, and M. verticillatum
Figures
1.1. Evolutionary relationships of major groups of aquatic plants
1.2. Pollination in water-celery
1.3. Lake surface covered with white male flowers of water-celery
1.6. Diagram of the littoral zone
1.7. Zonation in littoral zone vegetation
1.9. Distribution of lakes in Pennsylvania
1.10. Succession in a glacial kettle lake
1.15. An infestation of European water-chestnut
1.16. Water surface nearly covered by native fragrant water-lily
