Gracilaria's a genus of red algae (Rhodophyta) notable for its economic importance as an agarophyte, as well as its use as a food for humans and various species of shellfish. Various species within the genus are cultivated in various parts of the developing world, including Asia, South America, Africa and Oceania. Distribution Gracilaria bursa-pastoris (S.G.Gremlin) Silva and Gracilaria multipartita (Clemente) Harvey have long been established in southern England and northwestern France, but co… (More on Gracilaria)