Tetraedron Kützing, 1845

Holotype species: Tetraëdron regulare Kützing

Original publication and holotype designation: Kützing, F.T. (1845). Phycologia germanica, d. i. Deutschlands Algen in bündigen Beschreibungen. Nebst einer Anleitung zum Untersuchen und Bestimmen dieser Gewächse für Anfänger. pp. [i]-x, [1]-340 ['240']. Nordhausen: zu finden bei Wilh. Köhne.

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Description: Cells solitary and free-floating, flattened or triangular, quadrangular or polygonal; old cells nearly globose. Cell wall relatively thin, finely granulated when observed with light microscopy; ultrastructurally with inner polysaccharide and outer acetoresistant layer. The cell surface of young cells provided with irregular net, which disappears in old cells. Cell uninucleate with centrioles always present; chloroplast single, entirely filling the cell; pyrenoid single with homogeneous stroma and surrounded by starch envelope. Asexual reproduction by autospores, 2-4-8 per cell; released by rupture of parental cell. Flagellated stages and sexual reproduction unknown. Tetraedron planktonic in freshwater; cosmopolitan. Most species in genus with uncertain status with few species well defined. Species distinguished based on details of cell size and shape.

Information contributed by: T. Kalina. The most recent alteration to this page was made on 2022-05-29 by E.A. Molinari Novoa.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as neuter.

Most recent taxonomic treatment adopted: Tsarenko, P.M. (2011). Sphaeropleales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 3: Chlorophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 280-355. Ruggell: A.R.A. Gantner Verlag K.-G..

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=43394

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 29 May 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 23 November 2024