| Bracteacoccus helveticus | |
|---|---|
Scientific classification  | |
| (unranked): | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Chlorophyceae |
| Order: | Sphaeropleales |
| Family: | Bracteacoccaceae |
| Genus: | Bracteacoccus |
| Species: | B. helveticus |
| Binomial name | |
| Bracteacoccus helveticus (Kol & F.Chodat) Starr [1] | |
| Synonyms [1] | |
| |
Bracteacoccus helveticus is a species of green algae, in the family Bracteacoccaceae. [1] Under its synonym Cryococcus helveticus, it was the only species in the genus Cryococcus. [2]
The Chlorophyceae are one of the classes of green algae, distinguished mainly on the basis of ultrastructural morphology. They are usually green due to the dominance of pigments chlorophyll a and chlorophyll b. The chloroplast may be discoid, plate-like, reticulate, cup-shaped, spiral- or ribbon-shaped in different species. Most of the members have one or more storage bodies called pyrenoids located in the chloroplast. Pyrenoids contain protein besides starch. Some green algae may store food in the form of oil droplets. They usually have a cell wall made up of an inner layer of cellulose and outer layer of pectose.
Bracteacoccus is a genus of green algae, the sole genus of the family Bracteacoccaceae. It is a terrestrial alga commonly found in soils, from the tropics to the poles.
Hormotila is a genus of green algae in the family Chaetophoraceae.
Pseudochlorella signiensis is a species of green algae in the family Koliellaceae. Pabia signiensis, the only species in the genus Pabia, is regarded as a synonym. Pabia was sunk into Pseudochlorella in 2016.
Pleurastrum is a genus of green algae, specifically of the Chlorophyceae. As of February 2022, it was the only genus in the family Pleurastraceae.
Sykidion is a genus of green algae. Pseudoneochloris is a synonym of this genus. As of March 2022, Sykidion was the only genus in the family Sykidiacaeae, which was the only family in the order Sykidiales.
Klebsormidiales is an order of charophyte algae. It is the only order in the class Klebsormidiophyceae, sister of the Phragmoplastophyta. As of February 2022, AlgaeBase accepted two families in the order:
Sycidiales is an order of fossil charophyte green algae. The reproductive structures in Sycidales have a calcified cover, called a utricle, that is thought to prevent the zygote being desiccated. Other Paleozoic families lack this cover, as do modern charophytes. Fossils of the family Sycidiaceae are found over the longest time span, from the Silurian to the Carboniferous.
Trochiliscaceae is a family of fossil charophyte green algae. It is the only member of the order Trochiliscales. The reproductive structures in Trochiliscaceae have a calcified cover, called a utricle, that is thought to prevent the zygote being desiccated. Other Paleozoic families lack this cover, as do modern charophytes. Fossils of Trochiliscaceae are from the Devonian.
Feistiellaceae is a family of freshwater green algae in the order Charales.
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