They have a sporphytic thallus usually aggregated to form a pseudo-parenchyma. The order gets its name from the genus Desmarestia, which is named after the French zoologist Anselme Gaëtan Desmarest (1784–1838).
They have a sporophytic thallus, often aggregated into a pseudo-parenchyma. The order gets its name from the genus Desmarestia, which is named after the French zoologist Anselme Gaëtan Desmarest (1784–1838).