Chlorophyceae is commonly called as green algae. habitat: freshwater salt water aur brackishwater (combination of freshwater and seawater). plant body: thallus. chlorophyceae is of three types, they are. unicellular: example chlamydomonas which is flagellated, chlorella and acetabularia which are aflagellated. colonial or coenobium: example volvox. filamentous forms: ulothrix commonly known as pond wool, spirogyra commonly known as pond silk. acetabularia is largest unicellular green algae. wall walks is also flagellated colonial algae. the cell wall of chlorophyceae members is with two layers outer layer is packed in and inner layer is cellulose. pectin dissolves in water to form mucilaginous substance that's why we sleep when we step on algae. photosynthetic pigments present in chlorophyll members are chlorophyll A and b which are similar to higher plants and carotenoids are also present. as predominant pigments are chlorophyll A and b hence referred as green algae. a great variation in the shape of chloroplast is seen in chlorophyceae. disquiet shaped chloroplast is seen in chara,plate light chloroplast is seen in fritschiella, reticulate like chloroplast seen in oedogonium, cup shaped chloroplast is seen in chlamydomonas, ribbon like or spiral shaped chloroplast is seen in Spirogyra, star shaped chloroplast is seen in zygnema, girdle shaped chloroplast is seen in eulothrix. in claim bonus is a single cup shaped chloroplast that is only one chloroplast is present. reserve food material is starch and oil droplets.honour chloroplast we find proteinaceous structures that store reserve food material or found and or known as pyrenoids.pyrenoids are the structures where protein get surrounded by starch. flagella no.is 2 to 8. all flagella are equal.Reproduction is by vegetative propagation,asexual and sexual.Sexual reproduction is by isogamus,anisogamua,oogamy.