| Fragilariopsis | |
|---|---|
 | |
| Fragilariopsis kerguelensis | |
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Clade: | Stramenopiles |
| Phylum: | Gyrista |
| Subphylum: | Ochrophytina |
| Class: | Bacillariophyceae |
| Order: | Bacillariales |
| Family: | Bacillariaceae |
| Genus: | Fragilariopsis F.Hustedt, 1913 |
Fragilariopsis is a genus of diatoms belonging to the family Bacillariaceae. [1]
The genus has cosmopolitan distribution. [1]
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Species: [1]
The German Green Party has been present in the German parliament (Bundestag) continuously since 29 March 1983 as a parliamentarian party.
The order Pennales is a traditional subdivision of the heterokont algae known as diatoms. The order is named for the shape of the cell walls of pennate diatoms, which are elongated in valve view. The valves may be linear or oval in shape, and usually bear bilaterally symmetrical ornamental patterns. These patterns are composed of a series of transverse lines that can appear as rows of dots when viewed with an optical microscope. Some pennate diatoms also exhibit a fissure along their longitudinal axis. This is known as a raphe, and is involved in gliding movements made by diatom cells; motile diatoms always possess a raphe.
Ernst Vilhelm Østrup was a Danish botanist and phycologist, mainly working on diatoms.
Chaetoceros is probably the largest genus of marine planktonic diatoms with approximately 400 species described, although many of these descriptions are no longer valid. It is often very difficult to distinguish between different Chaetoceros species. Several attempts have been made to restructure this large genus into subgenera and this work is still in progress. However, most of the effort to describe species has been focused in boreal areas, and the genus is cosmopolitan, so there are probably many tropical species still undescribed. Some species are known from the fossil record, from the Quaternary of Sweden. It is the type genus of its family.
Friedrich Hustedt was a German teacher and botanist, best known for his diatom systematics research.
Craticula is a genus of diatom that lies on or in the top layers of sediments in the freshwater to brackish water environments it inhabits. In addition to frustule morphology the genus differs from closely related species by its sexual reproduction and movement in response to light.
Bacillariaceae is a family of diatoms in the phylum Heterokontophyta, the only family in the order Bacillariales. Some species of genera such as Nitzchia are found in halophilic environments; for example, in the seasonally flooded Makgadikgadi Pans in Botswana.
Australodelphis mirus is an extinct Pliocene dolphin. A. mirus is known from fossils found in the Sørsdal Formation, Mule Peninsula, Vestfold Hills, East Antarctica. The genus has been described as an example of convergent evolution with beaked whales.
Actinocyclus normanii is a microalga, a species of planktonic centric diatom. It is a marine species that is also found in brackish and eutrophic fresh water. It is considered an invasive species in the United States.
Ernst Johann Lemmermann was a German botanist who specialized in the field of phycology.
Fragilariopsis kerguelensis, is a pennate diatom native to the Southern Ocean. It has been characterized as "the most abundant diatom in the Antarctic Seas".
Fragilariopsis cylindrus is a pennate sea-ice diatom that is found native in the Argentine Sea and Antarctic waters, with a pH of 8.1-8.4. It is regarded as an indicator species for polar water.
Stauroneis is a genus of diatoms (Bacillariophyta) with species that occur in fresh and marine water.
Eucocconeis is a genus of diatoms belonging to the family Achnanthidiaceae.
Kolbesia is a genus of algae belonging to the family Achnanthidiaceae.
Cosmioneis is a genus of diatoms belonging to the family Cosmioneidaceae.
Diploneis is a genus of diatoms belonging to the family Diploneidaceae.
Gomphocymbella is a genus of diatoms belonging to the family Cymbellaceae.
Martyana is a genus of diatoms belonging to the family Fragilariaceae.
Melosira is a genus of diatoms belonging to the family Melosiraceae.
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