Stephanoon Schewiakoff, 1892

Holotype species: Stephanoon akenasii Schewiakoff

Description: Colonies spherical or ellipsoidal, containing eight or 16 cells arranged in two parallel, alternating circular rows of four or eight cells each at the equatorial region of a gelatinous matrix. Cells spherical, each with two equal flagella, a stigma, contractile vacuole at base of flagella and a cup-shaped chloroplast with single basal pyrenoid. Asexual reproduction by autocolony formation; sexual reproduction unknown. Stephanoon is a rare freshwater genus and culture studies have not been reported. It may be a synonym of Eudorina.

Information contributed by: H. Nozaki. The most recent alteration to this page was made on 2012-01-25 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Masjuk, N.P. & Lilitska, G.G. (2011). Volvocales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 3: Chlorophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 218-225. 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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=47494

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 25 January 2012. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 29 March 2024

 
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