red algae gracilaria Gracilaria is 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 among Asia, South America, Africa and Oceania. [https://en.wikipedia.org/wiki/Gracilaria] <NOTES>According to WoRMS (World Register of Marine Species) and AlgaeBase, *Gracilaria verrucosa* is a synonym for *Gracilariopsis longissima* (S.G.Gmelin) M.Steentoft, L.M.Irvine & W.F.Farnham, 1995 [http://www.marinespecies.org/aphia.php?p=taxdetails&id=163501] [http://www.algaebase.org/search/species/detail/?species_id=J0a5b7966681b2c38&sk=0&from=results], and according to [http://uses.plantnet-project.org/en/Gracilaria_verrucosa_(PROSEA)], dried *Gracilaria verrucosa* can also contain *G. gracilis*, G. confervoides* and *Gracilariopsis longissima*. So it is safer to index at the Genus level (*Gracilaria* spp.). gracilaria spp. requires discussion