Green Algae Kingdom Plantae - Phylum Chlorophyta Predominantly found in fresh water a few species are marine. Photosynthetic Pigments: Chlorophyll a, b (makes plant green) Cell Walls: Cellulose Storage: Starch (store their energy as starch) Closest living relatives to land plants Deadmans Fingers - Codium paple Sea Lettuce - Ulva back to algae