156,497 species and infraspecific names are in the database, 22,022 images, 60,456 bibliographic items, 447,765 distributional records.

Gongrosira Kützing, 1843, nom. cons.

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

Holotype species: Gongrosira sclerococcus Kützing

Currently accepted name for the type species: Gongrosira viridis (Kützing) De Toni

Original publication and holotype designation: Kützing, F.T. (1843). Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser. pp. [part 1]: [i]-xxxii, [1]-142, [part 2:] 143-458, 1, err.], pls 1-80. Leipzig: F.A. Brockhaus.
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Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: John, D.M. (2002). Orders Chaetophorales, Klebshormidiales, Microsporales, Ulotrichales. In: The Freshwater Algal Flora of the British Isles. An identification guide to freshwater and terrestrial algae. (John, D.M., Whitton, B.A. & Brook, A.J. Eds), pp. 433-468. Cambridge: Cambridge University Press.

Description: Plants heterotrichous and often lime-encrusted. Prostrate system commonly pseudoparenchymatous, bearing system of short, erect branches terminating in blunt tipss. Cells cylindrical or clavate, walls sometimes thick and lamellated, each with nucleus, prominent parietal chloroplast and one to several pyrenoids. Asexual reproduction by zoospores, aplanospores or akinetes. Zoospores ovoid, biflagellate, with stigma. Sexual reproduction unknown. Gongrosira terrestrial or aquatic, rarely in marine habitats; probably cosmopolitan. Species distinguished based on cell dimensions, relative development of erect and prostrate system, nature of branching, position of sporangia, and presence or absence of lime encrustation. Some species poorly known or doubtful and many have been transferred to other chaetophoralean genera. An ultrastructural investigation of G. papuasica showed membranes traversing the pyrenoids and no plasmodesmata.

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

Numbers of names and species: There are 36 species names in the database at present, as well as 1 infraspecific names. Of the species names, 24 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.

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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.

Created: 28 December 2000 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=38297

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 18 October 2019.

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