Laurencia
Laurencia is a genus of red algae (Rhodophyta) that comprises numerous species distributed in tropical and subtropical marine waters worldwide. Members are typically found in shallow coastal habitats on rocky substrates, coral reefs, or among loose substrata, from the intertidal to subtidal zones.
Laurencia species exhibit a range of thallus forms, from crustose encrustations to articulated or dichotomously branched
Laurencia is notable for producing an array of halogenated secondary metabolites, especially brominated sesquiterpenes and diterpenes.
The genus belongs to the red algal order Ceramiales. It includes many described species, with Laurencia obtusa