Isoselmis Butcher, 1967: 19-20
Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Cryptophyta
Class Cryptophyceae
Order Cryptomonadales
Family Cryptomonadaceae
Holotype species: Isoselmis obconica Butcher
Original publication:Butcher, R.W. (1967). An introductory account of the smaller algae of British coastal waters. Part IV: Cryptophyceae. Fishery Investigations, Ministry of Agriculture, Fisheries and Food, London, Series IV Part IV: vi + 54, 22 pls.
Taxonomic status: currently recognized as a distinct genus.
Gender: This genus name is currently treated as feminine.
Description: Free-swimming, biflagellate monads; obovoid and somewhat metabolic; without furrow and gullet, but with two short, superficial rows of ejectisomes in the anterior-ventral region; the flagella equal and homodynamic, arising from a subapical depression; a single chloroplast, bright red to yellow, parietal, boat-shaped, filling about two-thirds the periphery of the cell; a pyrenoid and stigma present or not; forming palmelloid colonies in culture. Known only from a single sample taken off the Plymouth coast, England, and only with hesitation distinguished from the similar genus, Plagioselmis Butcher.
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):
Isoselmis obconica Butcher 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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=47340
Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 May 2013.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:5497
