| Halicoryne | |
|---|---|
 | |
| Halicoryne wrightii | |
Scientific classification  | |
| (unranked): | Viridiplantae |
| Phylum: | Chlorophyta |
| Class: | Ulvophyceae |
| Order: | Dasycladales |
| Family: | Dasycladaceae |
| Genus: | Halicoryne Harvey |
| Species | |
Halicoryne is a genus of green algae in the family Dasycladaceae. [1]
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 freshwater unicellular algae, less common today than they were during the Proterozoic. Only 15 species have been described, but more species are likely to exist. Together with the red algae (Rhodophyta) and the green algae plus land plants, they form the Archaeplastida. However, the relationships among the red algae, green algae and glaucophytes are unclear, in large part due to limited study of the glaucophytes.
Ulvales is an order of green algae.
The Fucales (fucoids) are an order in the brown algae. The list of families in the Fucales, as well as additional taxonomic information on algae, is publicly accessible at Algaebase.
AlgaeBase is a global species database of information on all groups of algae, as well as one group of flowering plants, the sea-grasses.
The Trebouxiophyceae are a class of green algae, in the division Chlorophyta. Their circumscription within the green algae is not well established due to the need for more genetic studies at higher levels within the group.
Chaetophorales is an order of green algae in the class Chlorophyceae.
The Rivulariaceae are a family of cyanobacteria within the Nostocales in which the filaments (trichomes) are tapered from wider at the base to narrower at the tip.
Tilopteridales is an order of brown algae with isomorphic alternation of generations.
Ralfsiales is an order of crustose brown algae containing two families.
Mamiellophyceae is a class of green algae in the division Chlorophyta.
Pyramimonadophyceae is a class of green algae in the division Chlorophyta.
Syracosphaerales is an order of algae consisting of three families:
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