Species details
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SPECIES
Tetrastrum glabrum, (Y.V.Roll) Ahlstrom, Tiffany, 1934
Synonyms
- Tetrastrum staurogeniaeforme var. glabrum: Roll (1928)
Morphological Characteristics
The coenobia are (particularly the older) slightly elongated, usually with a long rectangular opening in the middle of the cenobium, sometimes with completely grown together cells. Cells triangular to trapezoidal, on the outer side gibbous, in the middle of cenobium tapering conically. Cell wall very smooth, without warts or bristles. The chloroplast is parietal with a pyrenoid.
Morphological Data
Distinctive morphometric characters
- Cell Diameter: from 2 to 8 µm
- Width of colony: from 7 to 15 µm
- Length of colony: from 7 to 16 µm
Distribution
Distribution: as Tetrastrum glabrum (Y.V.Roll) Ahlstrom & Tiffany
Europe: Black Sea (BSPC Editorial Board 2014), Germany (Täuscher 2014), Poland (Kokocinski & Soininen 2012), Romania (Caraus 2002, Caraus 2012), Spain (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998). South America: Brazil (Menezes 2010, Menezes 2010, Freitas & Loverde-Oliveira 2013). Asia: China (Hu & Wei 2006).
Notes
Toxicity:
Not reported.
Resistence Stages:Not reported.
References
Das Phytoplankton des Susswassers: Systematik und Biologie 7.T., Halfte. Chlorophyceae (Grunalgen), Ordnung: Chlorococcales / von J. Komarek, B. Fott., Stuttgart : E. Schweizerbart'sche Verlagsbuchhandlung, Huber-Pestalozzi G., 1983, 1044
SHAPE
Shape Type
simple
Shape Unit
Cell
Cod:
1 - Sphere
Surface Area
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Volume
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