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.
Heinrich Leonhards Skuja (1892–1972) was a botanist specialist of algae.
Oscillatoria brevis, is a species of the genus Oscillatoria first identified in 1892. It is a Blue-green filamentous cyanobacteria, which can be found in brackish and fresh waterways. O. brevis can also be isolated from soil.
Thalassiothrix is a genus of Chromista belonging to the family Thalassionemataceae.
Thalassionema is a genus of Chromista belonging to the family Thalassionemataceae.
Tolypella is a genus of green algae belonging to the family Characeae.
Achnanthes is a genus of diatoms belonging to the family Achnanthaceae.
Achnanthidium is a genus of diatoms belonging to the family Achnanthidiaceae.
Eucapsis is a genus of cyanobacteria belonging to the family Merismopediaceae.
Eucocconeis is a genus of diatoms belonging to the family Achnanthidiaceae.
Fischerella is a genus of cyanobacteria belonging to the family Hapalosiphonaceae.
Gomphosphaeria is a genus of cyanobacteria belonging to the family Gomphosphaeriaceae.
Halamphora is a genus of diatoms belonging to the family Amphipleuraceae.
Hantzschia is a genus of diatoms belonging to the family Bacillariaceae.
Rhizosoleniaceae is a family of diatoms belonging to the order Rhizosoleniales.
Detonula is a genus of diatoms belonging to the family Thalassiosiraceae.
Fibrocapsa is a genus of algae belonging to the family Fibrocapsaceae.
Melosira is a genus of diatoms belonging to the family Melosiraceae.
Balliales is an order of red algae belonging to the class Florideophyceae. The order consists only one family, Balliaceae. with only one genus - BalliaHarvey.
Pavlova is a genus of algae belonging to the family Pavlovaceae.
