153,268 species and infraspecific names are in the database, 20,952 images, 59,258 bibliographic items, 409,101 distributional records.

Gloeococcus A.Braun, 1850, nom. cons.

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Chlorophyceae
Order Chlamydomonadales
Family Palmellopsidaceae

Holotype species: Gloeococcus minor A.Braun

Original publication and holotype designation: Braun, A. (1850 '1851'). Betrachtungen über die Erscheinung der Verjüngung in der Natur. pp. [i]-xvi, [1]-363, pls I-III. Leipzig: Verlag von Wilhelm Engelmann.
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Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Massjuk, 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..

Description: Thalli colonial, spherical to irregular, with numerous ovoid to globose cells embedded in a structureless gelatinous matrix. Colony size variable, and species specific, 150 &m to > 5 cm. Colony growth by division of cells into 2-4 daughter cells. Cells with two apical flagellate; slightly motile within matrix. Cells uninucleate with 2 contractile vacuoles; chloroplast single, parietal and cup-shaped; pyrenoids and eyespots present or absent. Asexual reproduction by budding or fragmentation of colonies. New colonies also initiated by zoospores, 2-4 produced within parental cells, released by rupture of outer colony membrane. Sexual reproduction unknown. Gloeococcus aquatic or in soil; reported from North America and Europe. Taxonomic placement uncertain and requires ultrastructural study.

Information contributed by: D. Garbary. The most recent alteration to this page was made on 19 Oct 2015 by M.D. Guiry.

Numbers of names and species: There are 14 species names in the database at present, as well as 1 infraspecific names. Of the species names, 10 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.

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.

Created: 11 April 2002 by M.D. Guiry

Verified by: 19 October 2015 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=43407

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 18 October 2018.

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