Gloeocystis Nägeli, 1849
Holotype species: Gloeocystis vesiculosa Nägeli
Original publication and holotype designation: Nägeli, C. (1849). Gattungen einzelliger Algen, physiologisch und systematisch bearbeitet. Neue Denkschriften der Allg. Schweizerischen Gesellschaft für die Gesammten Naturwissenschaften 10(7): i-viii, 1-139, pls I-VIII.
Taxonomic status: currently recognized as a distinct genus.
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..
Description: Colonies (rarely unicellular) microscopic with cells embedded in irregular mucilaginous envelope and forming spherical to pyramidal to amorphous masses to about 55 &m diameter. Mucilaginous material often lamellate around each cell or group of cells, these often in clusters following sporulation. Cells spherical to oval, mostly 6-23 &m in maximum dimension, with smooth cell walls. Cells uninucleate; chloroplast single and parietal with single pyrenoid. Asexual reproduction by autospores; 2-8(-16) per sporangium. Brown akinetes with thick walls reported for G. banneergattensis. Gloeocystis planktonic in freshwater, aerial on rocks or wood, in soil or associated with mosses; widely distributed in temperate to tropical climates. Taxonomic concepts vary among recent authors with Gloeocystis species overlapping with Coenocystis; distinguishing features of these genera require reevaluation. Species distinguished based on cell size, shape and arrangement, and colony morphology.
Information contributed by: D. Garbary & A. Comas. The most recent alteration to this page was made on 27 Feb 2016 by M.D. Guiry.
Numbers of names and species: There are 28 species names in the database at present, as well as 7 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.
Cambra Sánchez, J., Álvarez Cobelas, M. & Aboal Sanjurjo, M. (1998). Lista florística y bibliográfica de los clorófitos (Chlorophyta) de la Península Ibérica, Islas Baleares e Islas Canarias. pp. 1-614. Burgos: Asociación Española de Limnología.
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: 27 February 2016 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=43408
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 20 June 2019.