Chondrosphaera Skuja, 1964: 125
Classification:
Empire Eukaryota
Kingdom Plantae
Phylum Chlorophyta
Class Trebouxiophyceae
Order Chlorellales
Family Oocystaceae
Holotype species: Chondrosphaera lapponica Skuja
Original publication and holotype designation:Skuja, H. (1964). Grundzüge der Algenflora und Algenvegetation der Fjeldgegenden um Abisko in Schwedisch-Lappland. Nova Acta Regiae Societatis Scientiarum Upsaliensis, Series 4, 18(3): 1-465.
Taxonomic status: currently recognized as a distinct genus.
Description: Cells sometimes solitary but usually a few to many united in a mucilaginous colony, the cells lying within swollen and gelatinized mother cell walls. Cells globose, 8-12 µm in diameter, the cell wall smooth except for one small wart- or beak-like thickening, 3 x 0.5 µm. Chloroplast single, stellate, with one pyrenoid. Asexual reproduction by 2-4-8 autospores, released by mucilaginization or rupture of the mother cell wall. Colonies often comprised of cells of several generations. Flagellated stages and sexual reproduction unknown. Chondrosphaera, planktonic or metaphytic, freshwater, reported only from Argentina and Sweden. Cells sometimes solitary but usually a few to many united in a mucilaginous colony, the cells lying within swollen and gelatinized mother cell walls. Cells globose, 8-12 µm in diameter, the cell wall smooth except for one small wart- or beak-like thickening, 3 x 0.5 µm. Chloroplast single, stellate, with one pyrenoid. Asexual reproduction by 2-4-8 autospores, released by mucilaginization or rupture of the mother cell wall. Colonies often comprised of cells of several generations. Flagellated stages and sexual reproduction unknown. Chondrosphaera, planktonic or metaphytic, freshwater, reported only from Argentina and Sweden.
NCBI Nucleotide Sequences
Numbers of names and species: There is only one species or infraspecific name in the database at present, which has been flagged as currently accepted taxonomically.
Names: ('C' indicates a name that is currently 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):
Chondrosphaera lapponica Skuja C - type
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: http://www.algaebase.org/search/genus/detail/?genus_id=47205
Citing AlgaeBase
Cite this record as:
Michael Guiry in Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 June 2013.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:5565
