Which of the following is incorrectly matched?
Ulothrix - Mannitol
Porphyra - Floridian Starch
Volvox-Starch
Ectocarpus - Fucoxanthin
Ulothrix is a member of chlorophycean (green algae) with reserved food material, starch.
Mannitol is the stored food material of Phaeophyceae (brown algae).
Hence, the correct option is (1).