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Home / Chrysophyceae / Colonial / Non-flagellated / Tetrasporopsis |
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Name derivation: |
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Classification: |
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Tetrasporopsis Lemmermann ex Schmidle 1902; 1 of 5 species descriptions is currently accepted taxonomically (Guiry and Guiry 2014).Order Chromulinales; Family Chrysocapsaceae |
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Morphology: |
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Colony with cells embedded in mucilage, in groups of four. Have cell walls and a stima (eyespot) but lack contractile vacuoles. Spherical when viewed from the top but ellipsoidal when viewed from the side. Two chloroplasts found in each cell. |
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Similar genera: |
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Dermatochrysis is similar, but has a contractile vacuole and lacks cell walls and stigma (Entwisle and Andersen 1990). |
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Habitat: |
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Attached to submerged substrates in flowing water. |
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References: |
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Entwisle, T.J. and Andersen, R.A. A re-examination of Tetrasporopsis (Chrysophyceae) and the description of Dermatochrysis gen. nov. (Chrysophyceae): a monostromatic alga lacking cell walls. Phycologia from DePaul University, Chicago, IL. 1990. Guiry, M.D. and G.M. Guiry 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 March 2014. Wehr, J.D. and Sheath, R.G. Freshwater Algea of North America. 2003. Page 498. |
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