The sea lettuces comprise the genus Ulva, a group of edible green algae that is widely distributed along the coasts of the world's oceans. The type species within the genus Ulva is Ulva lactuca, lactuca being Latin for "lettuce". The genus also includes the species previously classified under the genus Enteromorpha, the former members of which are known under the common name green nori.
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 in the genus are cultivated among Asia, South America, Africa and Oceania.
Saccharina is a genus of 24 species of Phaeophyceae. It is found in the north Atlantic Ocean and the northern Pacific Ocean at depths from 8 m to 30 m.
Bornetella is a genus of green algae in the family Dasycladaceae.
Paulschulzia is a genus of green algae, specifically of the family Tetrasporaceae.
Pseudoscourfieldia is a genus of green algae in the family Pycnococcaceae.
Scherffelia is a genus of green algae in the family Chlorodendraceae.
Schroederiella is a genus of green algae in the family Scenedesmaceae.
Scourfieldia is a genus of green algae in the family Scourfieldiaceae. Cardiomona Korshikov is an invalid synonym.
Struveopsis is a genus of green algae in the family Boodleaceae.
Treubaria is a genus of green algae, the sole genus in the family Treubariaceae.
Pringsheimiella is a genus of green algae, in the family Ulvellaceae.
Valkanoviella is a monotypic genus of green algae, in the family Chlorococcaceae. It only contains one known species, Valkanoviella vaucheriaeBourrelly, 1965.
Janus Lauritz Andreas Kolderup Rosenvinge, generally cited as Lauritz Kolderup Rosenvinge was a Danish botanist and phycologist.
The Corallinaceae are one of the two extant Coralline families of red algae; they are differentiated from the morphologically similar Sporolithaceae by their formation of grouped sporangial chambers, clustered into sori. The Corallinoideae is monophyletic; the other subfamilies form another monophyletic group.
Laurencia is a genus of red algae that grow in temperate and tropical shore areas, in littoral to sublittoral habitats, at depths up to 65 m (213 ft).
Desmarestia is a genus of brown algae found worldwide. It is also called acid weed, acidweed, oseille de mer, sea sorrel, ウルシグサ, stacheltang, mermaid's hair, landlady's wig, or gruagach. However, 'sea sorrel' can also specifically refer to Desmarestia viridis. Members of this genus can be either annual or perennial. Annual members of this genus store sulfuric acid in intracellular vacuoles. When exposed to air they release the acid, thereby destroying themselves and nearby seaweeds in the process. They are found in shallow intertidal zones.
Phyllophoraceae is a family of red algae in the order Gigartinales.
Zanardinia is a monotypic genus of seaweed in the brown algae. The only species, Zanardinia typus, commonly known as penny weed, is native to the northeastern Atlantic Ocean and the Mediterranean Sea.
Liagoraceae is a family of red algae (Rhodophyta) in the order Nemaliales. The type genus is LiagoraJ.V.Lamouroux.
