The brown seaweeds occupy a large area of Pakistan Coast and nearby continental shelf with a large EEZ of 200 sq km up to a depth of 110 m and show great variation in type and species. Most of the studies made in the past, were either on the taxonomy of brown seaweeds from the foregoing literature survey, it becomes apparent that most of the above mentioned studies were either on the taxonomy of brown seaweeds growing at the coast of Karachi or on ecological surveys about them, but such investigations lack information about their anatomy. There is a great lacuna of knowledge circumscribing...