1. Bell Ringer Define angiosperm

2. Marine Angiosperms

3. Angiosperms Reproduce with flowering & seeds Few live in the water Descended from land ancestors Live at surface Most conspicuous: sea grasses & mangroves

4. Sea Grasses Superficially similar to seaweeds Not true grasses Found off coasts of North America, Atlantic coast of Europe, Eastern Asia, temperate Australia, South Africa

5. Sea Grasses Form broad gray or green meadows Support rich communities of heterotrophs Life cycle is similar to other angiosperms 45 species known

6. Sea Grasses Eelgrass - Zostera – Most common sea grass – Muddy shallows of calm bays and estuaries of US Atlantic & Pacific coasts Turtle grass (Thalassia) & manatee grass (Syringodium) – Named after animals that once shared their habitat

10. Sea Grasses Emerald-green surf grass (Phyllospadix) – possibly most beautiful of all – Seasonal flowers & fuzzy fruit – Survive in turbulent, wave-swept intertidal & subtidal zones of temperate East Asia & western North America

12. Mangroves Tangled masses of trees in low, muddy coasts in tropical & some subtropical areas Large, flowering plants Never completely submerged

13. Mangroves Thrive in sediment-rich lagoons, bays, & estuaries of the Indo-Pacific, tropical Africa, and the tropical Americas. Distribution depends on temperature, currents, & rainfall

14. Mangroves The sediment must be covered with brackish or salt water for part of the day Prop roots required for supports – Mud doesn’t provide support

15. Mangroves Mangroves in south Florida are among the world’s most widespread and consist primarily of red mangroves (Rhizophora)

17. Mangroves Seeds germinate on trees. If tide is out, the seed will drop into thick mud & growth will begin If tide is in, the seed will drop in the water and be carried off until it finds a new place to grow

18. Mangroves Mature in 20-30 years Grow to be 26-33 ft tall