| Ulvales | |
|---|---|
 | |
| Ulva | |
Scientific classification  | |
| (unranked): | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Ulvophyceae |
| Order: | Ulvales Blackman & Tansley |
| Families [1] | |
Ulvales is an order of green algae.
| Ulvales | |
|---|---|
| | |
| Ulva | |
| Scientific classification | |
| (unranked): | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Ulvophyceae |
| Order: | Ulvales Blackman & Tansley |
| Families [1] | |
Ulvales is an order of green algae.
Chlorophyta is a taxon of green algae informally called chlorophytes. The name is used in two very different senses, so care is needed to determine the use by a particular author. In older classification systems, it is a highly paraphyletic group of all the green algae within the green plants (Viridiplantae) and thus includes about 7,000 species of mostly aquatic photosynthetic eukaryotic organisms. In newer classifications, it is the sister clade of the streptophytes/charophytes. The clade Streptophyta consists of the Charophyta in which the Embryophyta emerged. In this latter sense the Chlorophyta includes only about 4,300 species. About 90% of all known species live in freshwater. Like the land plants, green algae contain chlorophyll a and chlorophyll b and store food as starch in their plastids.
The Ulvophyceae or ulvophytes are a class of green algae, distinguished mainly on the basis of ultrastructural morphology, life cycle and molecular phylogenetic data. The sea lettuce, Ulva, belongs here. Other well-known members include Caulerpa, Codium, Acetabularia, Cladophora, Trentepohlia and Monostroma.
The Prorocentrales are a small order of dinoflagellates. They are distinguished by having their two flagella inserted apically, rather than ventrally as in other groups. One flagellum extends forward and the other circles its base, and there are no flagellar grooves. This arrangement is called desmokont, in contrast to the dinokont arrangement found in other groups. Accordingly, the Prorocentrales may be called desmoflagellates, and in some classifications were treated as a separate class Desmophyceae.
The glaucophytes, also known as glaucocystophytes or glaucocystids, are a small group of unicellular algae found in freshwater and moist terrestrial environments, less common today than they were during the Proterozoic. The stated number of species in the group varies from about 14 to 26. Together with the red algae (Rhodophyta) and the green algae plus land plants, they form the Archaeplastida.
Charales is an order of freshwater green algae in the division Charophyta, class Charophyceae, commonly known as stoneworts. Depending on the treatment of the genus Nitellopsis, living (extant) species are placed into either one family (Characeae) or two. Further families are used for fossil members of the order. Linnaeus established the genus Chara in 1753.
AlgaeBase is a global species database of information on all groups of algae, both marine and freshwater, as well as sea-grass.
The Catalogue of Life is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxonomic Information System. The Catalogue is used by research scientists, citizen scientists, educators, and policy makers. The Catalogue is also used by the Biodiversity Heritage Library, the Barcode of Life Data System, Encyclopedia of Life, and the Global Biodiversity Information Facility. The Catalogue currently compiles data from 165 peer-reviewed taxonomic databases that are maintained by specialist institutions around the world. As of September 2022, the COL Checklist lists 2,067,951 of the world's 2.2m extant species known to taxonomists on the planet at present time.
Chaetopeltidales are an order of green algae in the class Chlorophyceae.
Chaetophorales is an order of green algae in the class Chlorophyceae.
Ulotrichales is an order of green algae in the class Ulvophyceae.
Ctenocladaceae is a family of green algae in the order Ulvales.
Phaeophilaceae are a family of green algae in the order Ulvales.
Ctenocladus is a genus of green algae in the order Ulvales.
Pseudopleurococcus is a genus of green algae in the order Ulvales. It was described by J.W. Snow in an 1899 volume of the Annals of Botany. The genus contains six recognized species.
Ulva grandis is a species of seaweed in the family Ulvaceae that is endemic to Kiamari, Pakistan. The name comes from Latin meaning large.
Ulva ohnoi is a species of light-green coloured seaweed in the family Ulvaceae that is endemic to Japan.
Cyanonephron elegans is a freshwater species of cyanobacteria in the family Synechococcaceae. It is described in the Netherlands, Siberia, Russia and Queensland, Australia.
Cyanidiophytina is a subdivision of red algae.
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