I. Internal thallus morphologies
II. External thallus morphologies
III. General Growth Forms
IV. Algal Growth
Internal Thallus Morphologies
Limited cell differentiation compared to terrestrial plants
Phytoplankton - Euglenophytes
- abundant, nutrient-rich fw, some marine
- auxotrophic, require vitamin B1 and B12
- chl a and b, b-carotene, diadinoxanthin
- color of most green though some produce red water blooms
first continuous record
Rocky shores occur on steep coasts !
uplift or when waves and currents carry "
sediments away leaving the rocks!
Common on West Coast and on the "
East Coast north of Cape Cod, MA!
- occupy narrow coastal area!
II. Unifying Characteristics
III. Distinguishing Classes
IV. Classes in Detail
16,000 species, only about 1,600
Easiest division of Chlorophyta from other algae:
- usually bright green, grassy color
- spores none
- gametes none
- spermatia = unagellated male gametes; no free
= passive dispersal by water
Flagella? NO- lack of flagella has led to
TRIPHASIC LIFE HISTORY
Triphasic Life Histories :Terminology
What are Mangroves?
- tidal areas
- single plant or a whole
community of plants
- halophytes (salt loving)
- 40 species of Mangroves dominate 75% of the tropical
coastline between 25 N & 25 S
- Orders Myrtales & Rhizophrale