Coenocystis Korshikov, 1953

Lectotype species: Coenocystis planctonica Korshikov

Original publication: Korshikov, A.A. (1953). Viznachnik prisnovodnihk vodorostey Ukrainsykoi RSR. Pidklas Protokokovi (Protococcineae). Bakuol'ni (Vacuolales) ta Protokokovi (Protococcales) [The Freshwater Algae of the Ukrainian SSR. Sub-Class Protococcineae. Vacuolales and Protococcales]. Vol. 5 pp. 439, 421 figures. Kyiv: Akademyy Nauk Ukrayins'koy RSR. [in Ukrainian]

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Type designated in: Komárek, J. & Fott, B. (1983). Chlorophyceae (Grünalgen) Ordnung: Chlorococcales. Das Phytoplankton des Süsswassers. In: Das Phytoplankton des Süsswassers (Die Binnengewässer) XVI. 7. Teil 1. Hälfte. (Huber-Pestalozzi, G. Eds), pp. [1]-x, [1]-1044. Stuttgart: E. Schweizerbart'sche Verlangbuchhandlung (Nägele u. Obermiller).

Description: Thalli colonial with 2, 4, 8, 16 or more cells embedded in spherical to irregular structureless, gelatinous envelope. Cells oval to cylindrical, 5-25 x 3-20 &m, with smooth cell walls. Cells uninucleate; chloroplast single and parietal, usually band-shaped to lobed but stellate in one species; pyrenoid single. Asexual reproduction by autospores; 2-4-8 spores per sporangium, released by fragmentation of sporangial walls into two or more parts, these remaining visible in colony envelope. Spores generally arranged in parallel in long axis of cell; when 4 spores these often tetrahedral. Flagellated stages and sexual reproduction unknown. Coenocystis planktonic in rivers and lakes in diverse habitats including peat bogs; reported from Europe and North and South America, probably cosmopolitan. Species distinguished base based on differences in chloroplast morphology and cell dimensions. Coenocystis estheriana retained by other authors in Siderocelis.

Information contributed by: D. Garbary & A. Comas. The most recent alteration to this page was made on 2012-01-27 by M.D. Guiry.

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

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=43464

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 27 January 2012. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024