| Chara virgata | |
|---|---|
 | |
| Chara virgata. Note the typical reproductive organs: male antheridia (red) and female archegonia (brown). | |
Scientific classification  | |
| (unranked): | Viridiplantae |
| (unranked): | Charophyta |
| Class: | Charophyceae |
| Order: | Charales |
| Family: | Characeae |
| Genus: | Chara |
| Species: | C. virgata |
| Binomial name | |
| Chara virgata | |
| Synonyms | |
Chara delicatula C.Agardh, 1824 | |
Chara virgata is slender, branched freshwater green alga.
Chara virgata grows to 30 cm in length. Its structure is unlike any other alga. It has a main axis of elongated nodes with whorled laterals. In colour it is dark green. [1]
Algae are any of a large and diverse group of photosynthetic, eukaryotic organisms. The name is an informal term for a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as Chlorella, Prototheca and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to 50 metres (160 ft) in length. Most are aquatic and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem that are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the Charophyta, a division of green algae which includes, for example, Spirogyra and stoneworts. Algae that are carried by water are plankton, specifically phytoplankton.
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.
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.
Characeae is a family of freshwater green algae in the order Charales, commonly known as stoneworts. They are also known as brittleworts or skunkweed, from the fragility of their lime-encrusted stems, and from the foul odor these produce when stepped on.
Chara may refer to:
The Field Elm cultivar Ulmus minor 'Virgata' (:'twiggy') was first described, as Ulmus campestris virgata, by Pepin in Revue Horticole (1865) from a stand of some thirty trees beside a monastery at Grand-Puits near Nangis, Seine-et-Marne, said to have been planted by the friars in 1789 and propagated in 1835 by Cochet's nursery at Grisy-Suisnes. Pepin noted that in France 'Virgata' was sometimes confused with another, less vigorous elm cultivated as 'Orme pyramidal'.
Shugo Chara!, also known as My Guardian Characters, is a Japanese shōjo manga series created by the manga author duo, Peach-Pit. The story centers on elementary school girl Amu Hinamori, whose popular exterior, referred to as "cool and spicy" by her classmates, contrasts with her introverted personality. When Amu wishes for the courage to be reborn as her would-be self, she is surprised to find three colorful eggs the next morning, which hatch into three Guardian Characters: Ran, Miki, and Su.
Chlainomonas is a genus of algae in the family Chlamydomonadaceae. They are found in freshwater habitats or on snow, where they are one of the main algae responsible for causing watermelon snow.
Closterium is a genus of desmid, a group of charophyte green algae. It is placed in the family Closteriaceae. Species of Closterium are a common component of freshwater microalgae flora worldwide.
C. vulgaris may refer to:
Physella wrighti, common name the hotwater physa, is a species of small air-breathing freshwater snail, an aquatic gastropod mollusk in the family Physidae.
Chara is a genus of charophyte green algae in the family Characeae. They are multicellular and superficially resemble land plants because of stem-like and leaf-like structures. They are found in freshwater, particularly in limestone areas throughout the northern temperate zone, where they grow submerged, attached to the muddy bottom. They prefer less oxygenated and hard water and are not found in waters where mosquito larvae are present. They are covered with calcium carbonate (CaCO3) deposits and are commonly known as stoneworts. Cyanobacteria have been found growing as epiphytes on the surfaces of Chara, where they may be involved in fixing nitrogen, which is important to plant nutrition.
Red algae, or Rhodophyta, are one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest phyla of algae, containing over 7,000 currently recognized species with taxonomic revisions ongoing. The majority of species (6,793) are found in the Florideophyceae (class), and mostly consist of multicellular, marine algae, including many notable seaweeds. Red algae are abundant in marine habitats but relatively rare in freshwaters. Approximately 5% of red algae species occur in freshwater environments, with greater concentrations found in warmer areas. Except for two coastal cave dwelling species in the asexual class Cyanidiophyceae, there are no terrestrial species, which may be due to an evolutionary bottleneck in which the last common ancestor lost about 25% of its core genes and much of its evolutionary plasticity.
Chara vulgaris, the common stonewort, is a green alga species in the genus Chara. Chara vulgaris has spikes between its bark cells in contrast to the similar Chara contraria.
Chara elegans is a green alga species in the genus Chara.
Durnesh Lough is a sedimentary lagoon in the northwest of Ireland. It is located on the coast of south County Donegal.
Nitellopsis obtusa is a large freshwater alga. It is also known by the common name starry stonewort. This alga grows to a length of over 1.5 metres, is bright translucent green and has branches growing in whorls from the main axis the plants easily break up. It is easily distinguished from other charophytes by star-shaped bulbils which permit vegetative reproduction.
Mustafa Shameel was a Pakistani scientist and educator noted for his work in the fields of barobiology, phycochemistry and taxonomy of algae. He spent most of his five decades' academic career at the University of Karachi.
The Characeae or stoneworts are a family of green algae. This is a partial list of species found in Britain and Ireland.
Chara hispida, the bristly stonewort, is a green alga species in the genus Chara. With 30 to 200 cm height and a stem diameter of 2–3 mm Chara hispida is one of the biggest Chara species in Europe.
 | This green algae-related article is a stub. You can help Wikipedia by expanding it. |