153,631 species and infraspecific names are in the database, 20,983 images, 59,437 bibliographic items, 412,634 distributional records.

Heterochlamydomonas Ed.R.Cox & Deason, 1969

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

Holotype species: Heterochlamydomonas inaequalis Ed.R.Cox & T.R.Deason

Original publication and holotype designation: Cox, E.R. & Deason, T.R. (1969). Heterochlamydomonas, a new alga from Tennessee. Journal of the Tennessee Academy of Sciences 44: 105-107.

Taxonomic status: currently recognized as a distinct genus.

Taxonomic notes
Chlamydomonadales (Shoup & Lewis 2003). - (1 May 2012) - Wendy Guiry

Description: Unicellular thalli ellipsoidal with a rounded to blunt posterior pole. Two anterior anisokont flagella. Basal bodies parallel. Highly-dissected and perforate, parietal chloroplast contains a single pyrenoid and stigma. Papilla absent. Single nucleus positioned near posterior end. Two anterior contractile vacuoles. Asexual reproduction by zoosporogenesis (sporangium non-motile) resulting in two to eight motile daughter cells. No other asexual stages have been reported. Sexual reproduction is (probably) isogamous. Zygotes are spherical without wall ornamentation.

Information contributed by: M. Buchheim. The most recent alteration to this page was made on 2 Feb 2016 by M.D. Guiry.

Comments: All species of Heterochlamydomonas are known only from soil samples from Bledsoe, Van Buren, and Wilson counties in Tennesse (United States). Floyd and others have studied the ultrastructure of the flagellar apparatus in H. inaequalis. No biochemical or molecular data are available for this organism.

Numbers of names and species: There are 3 species names in the database at present, of which 3 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.

References
Shoup, S. & Lewis, L.A. (2003). Polyphyletic origin of parallel basal bodies in swimming cells of Chlorophycean green algae (Chlorophyta). Journal of Phycology 39: 789-796.

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 September 2004 by M.D. Guiry

Verified by: 02 February 2016 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=44557

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 21 November 2018.

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