Desmarestiales is an order in the brown algae (Phaeophyceae). Members of this order have terete or ligulate (flat) pinnately branched thalli attached by discoid holdfasts. They have a sporophytic thallus usually aggregated to form a pseudo-parenchyma.[1] The order gets its name from the genus Desmarestia, which is named after the French zoologist Anselme Gaëtan Desmarest (1784–1838).[2] [3] As the general name of the class suggests, their pigmentation is brown.
Yang. Eun. Peters. Akira. Kawai. Hiroshi. Ligulate Desmarestia (Desmarestiales, Phaeophyceae) revisited: D. japonica sp. nov. and D. dudresnayi differ from D. ligulata. Journal of Phycology. January 2014. 50. 1. 149–166. 10.1111/jpy.12148. 26988016. 2164/4222. 14459493 . free.