Tiny Organisms in Aquatic Habitats

Colorless Flagellates –
Amoebozoa (Part), Cryptista (Part), Discoba (Part), Alveolates (Part), Stramenopiles (Part)

Observations on Haematococcus lacustris

Position in the EOL taxonomic tree. Please click on the tree view below to access EOL (Encyclopedia of Life).

Haematococcus lacustris (Girod-Chantrans) Rostafinski 1875

Most likely ID: n.a.

Basionym: Volvox lacustris Girod-Chantrans 1802

Add’l Synonyms: Sphaerella wrangelii Sommerfelt 1824
                               Protococcus kermesinus (Wrangel) C.Agardh 1825
                               Chlorococcum kermesinum (Wrangel) Fries 1825
                               Byssus kermesina (Wrangel) Wahlenberg 1826
                               Protococcus monospermus Corda 1833
                               Globulina kermesina (Wrangel) Turpin 1836
                               Globulina kermesinum (Wrangel) Turpin 1836
                               Disceraea purpurea Morren & C.Morren 1841
                               Haematococcus cordae Meneghini 1843
                               Haematococcus pluvialis Flotow 1844
                               Protococcus pluvialis (Flowtow) Kützing 1845
                               Protosphaeria pluvialis (Flowtow) Trevisan 1848
                               Protosphaeria cordae (Meneghini) Trevisan 1848
                               Cryptomonas purpurea (Morren & C.Morren) Diesing 1850
                               Chlamydococcus pluvialis (Flowtow) A.Braun 1850
                               Hysginum pluviale (Flowtow) Perty 1852
                               Chlamydomonas radiosa A.Schneider 1878
                               Sphaerella pluvialis (Flotow) Wittrock 1886
                               Sphaerella lacustris (Girod-Chantrans) Wittrock ex Hansgirg 1888
                               Haematococcus longistigma H.Ettl 1954
                               Haematococcus buetschlii var. bahusiensis Skuja 1956

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Sampling date 07/2016. Scale bars indicate 10 µm (1), 25 µm (2–4).

Four images.

First:Motile cell showing numerous contractile vacuoles, the vesicular nucleus and a pyrenoid.
Second:Smaller motile cell.
Third:Top view.
Fourth:Immotile stage due to nutrient limitation (nitrogen and vitamins, accordiung to Brian A. Whitton).

Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!

Place name: Rain barrel in a garden in Stockerau (Lower Austria , Austria) 
Latitude: 48.385405     Longitude: 16.216845

Microscope Zeiss Universal, camera Olympus OM-D M5 MKII. DOF images.

© Wolfgang Bettighofer,
images under Creative Commons License V 3.0 (CC BY-NC-SA).
For permission to use of (high resolution) images please contact postmaster@protisten.de.

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