154,256 species and infraspecific names are in the database, 21,059 images, 59,701 bibliographic items, 415,636 distributional records.

Woronichinia A.A.Elenkin, 1933

Empire Prokaryota
Kingdom Eubacteria
Subkingdom Negibacteria
Phylum Cyanobacteria
Class Cyanophyceae
Subclass Synechococcophycidae
Order Synechococcales
Family Coelosphaeriaceae

Holotype species: Woronichinia naegeliana (Unger) Elenkin

Original publication and holotype designation: Elenkin, A.A. (1933). O sistematicheskom podrazdenii poryadka Chroococcales Geitler (1925). Trudy Botanicheskogo Instituta Akademii Nauk SSSR, Ser. 2, Sporovye Rasteniya 1: 17-21.

Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Komárek, J., Kastovsky, J., Mares, J. & Johansen, J.R. (2014). Taxonomic classification of cyanoprokaryotes (cyanobacterial genera) 2014, using a polyphasic approach. Preslia 86: 295-335.

Description: Unicellular - colonial; colonies microscopic, +/- spherical or irregularly oval, usually composed from subcolonies, free living (plankton, metaphyton), with +/- narrow enveloping mucilaginous layer. Within colonies is developed a system of parallely and radially oriented tube-like stalks,+/- originating all from the centre of a colony; stalks are +/- thick, later widened as is the width of the cells and causing the radial lamellation of the mucilage (staining !); the stalk system lateral diffluents in the centre. Cells +/- radially elongated, joined to the ends (or within) of stalks, widely oval or slightly obovoid, in old colonies usually very densely, radially agglomerated in the peripheral layer. Cells pale blue-green or yellowish, in 5 species with aerotopes (obligatorily or facultatively).

Information contributed by: J. Komárek. The most recent alteration to this page was made on 5 Mar 2015 by M.D. Guiry.

Comments: Almost all species are planktonic or tychoplanktonic, less metaphytic or epipelic, few are known only from limited areas in the Europe (Scandinavian lakes, clear swamps in central Europe, etc.), from North America or from Himalayas. Three species with obligate possessing aerotopes cause occasional "water blooms" in eutrophic reservoirs, two in temperate zones, one in tropics.

Numbers of names and species: There are 22 species names in the database at present, as well as 1 infraspecific names. Of the species names, 19 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

Click here to also show infraspecific names in the list below.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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.

Created: 11 April 2002 by M.D. Guiry

Verified by: 05 March 2015 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=43588

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 January 2019.

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