| Onslowiaceae | |
|---|---|
Scientific classification  | |
| Clade: | SAR |
| Phylum: | Ochrophyta |
| Class: | Phaeophyceae |
| Subclass: | Dictyotophycidae |
| Order: | Onslowiales Draisma & Prud'homme van Reine in Phillips et al. [1] |
| Family: | Onslowiaceae Draisma & Prud'homme van Reine [2] |
| Genera | |
Onslowiaceae is the only family in order Onslowiales in the brown algae (class Phaeophyceae). [3] The family contains only the genera Onslowia and Verosphacela .
Fucus vesiculosus, known by the common names bladder wrack, black tang, rockweed, bladder fucus, sea oak, cut weed, dyers fucus, red fucus, and rock wrack is a seaweed found on the coasts of the North Sea, the western Baltic Sea, and the Atlantic and Pacific Oceans. It was the original source of iodine, discovered in 1811 and was used extensively to treat goitre, a swelling of the thyroid gland related to iodine deficiency.
The brown algae, comprising the class Phaeophyceae, are a large group of multicellular algae, including many seaweeds located in colder waters within the Northern Hemisphere. Most brown algae live in marine environments, where they play an important role both as food and as a potential habitat. For instance, Macrocystis, a kelp of the order Laminariales, may reach 60 m (200 ft) in length and forms prominent underwater kelp forests. Kelp forests like these contain a high level of biodiversity. Another example is Sargassum, which creates unique floating mats of seaweed in the tropical waters of the Sargasso Sea that serve as the habitats for many species. Many brown algae, such as members of the order Fucales, commonly grow along rocky seashores. Some members of the class, such as kelps, are used by humans as food.
Alariaceae are a family of brown algae in the order Laminariales.
Laminariaceae is a family of brown algal seaweeds, many genera of which are popularly called "kelp". The table indicates the genera within this family. The family includes the largest known seaweeds: Nereocystis and Macrocystis.
Gymnodinium is a genus of dinoflagellates, a type of marine and freshwater plankton. It is one of the few naked dinoflagellates, or species lacking armor. Since 2000, the species which had been considered to be part of Gymnodinium have been divided into several genera, based on the nature of the apical groove and partial LSU rDNA sequence data. Amphidinium was redefined later. Gymnodinium belong to red dinoflagellates that, in concentration, can cause red tides.
Pelvetia canaliculata, the channelled wrack, is a very common brown alga (Phaeophyceae) found on the rocks of the upper shores of Europe. It is the only species remaining in the monotypic genus Pelvetia. In 1999, the other members of this genus were reclassified as Silvetia due to differences of oogonium structure and of nucleic acid sequences of the rDNA.
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.
Ankyra is a genus of green algae in the family Characiaceae. This genus of algae is closely related to Atractomorpha and Sphaeroplea.
Hemiflagellochloris is a monotypic genus of green algae in the family Volvocaceae. It has only one known species, Hemiflagellochloris kazakhstanica.
Koliella is a genus of green algae in the order Prasiolales.
Myriotrichia is a genus of brown algae.
Bossiella is a genus of coralline algae with 5 recognised species. It reproduces via conceptacles; individual thalli only produce conceptacles of a single sex.
Nemoderma is the only genus in the family Nemodermataceae and order Nemodermatales of the brown algae. The genus contains only a single species, Nemoderma tingitanum.
Ishigeales is an order of brown algae. It includes two families, Ishigeaceae and Petrodermataceae. The genus Diplura is also included, but not placed to family.
Sphacelariales is an order of brown algae.
Choristocarpaceae is a family in the order Discosporangiales of the brown algae. The family contains a single genus, Choristocarpus.
Apophlaea is a genus of thalloid algae that is endemic to New Zealand. This genus has two species, both from the high intertidal zone on New Zealand's coasts. Specimens can reach around 15 cm in size. The thalli take a crustose form, but also contain upright, branching frond-like protrusions that reach 5–8 cm in height. Secondary pit connections and secondary pit connectionsare present in the organisms. Apophlaea reproduces by means of conceptacles; it produces tetraspores.
Adamsiella is a genus of red alga closely related to the genus Lenormandia. The holotype species for the genus is Adamsiella melchiori L.E. Phillips & W.A. Nelson.
Batrachospermaceae is a family of fresh water red algae (Rhodophyta). Genera within the Batrachospermaceae generally have a "Lemanea-type" life history with carpospores germinating to produce chantransia. Sporophyte phase with meiosis occurs in an apical cell to produce the gametophyte stage. Pit connections have two pit plug cap layers with the other layer enlarged. This family of freshwater red algae is uniaxial, meaning each filament with a single apical cell. The genera included within Batrachospermaceae are listed in the table below.
Laminaria sinclairii is a species of brown algae, in the family Laminariaceae. It is native to the lower intertidal zone of the northeastern Pacific Ocean from British Columbia southwards to California.
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