Isoselmis Butcher, 1967
Holotype species: Isoselmis obconica Butcher
Original publication and holotype designation: Butcher, R.W. (1967). An introductory account of the smaller algae of British coastal waters. Part IV: Cryptophyceae. Fisheries Investigations, London, series IV 1967: [i]-vi, [1]-54, 22 pls.
Request PDFDescription: 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.
Information contributed by: D. R. A. Hill. The most recent alteration to this page was made on 2021-10-07 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
Gender: This genus name is currently treated as feminine.
Most recent taxonomic treatment adopted: Throndsen, J. (1996). The planktonic marine flagellates. In: Identifying marine phytoplankton. (Tomas, C.R. Eds), pp. 591-730. San Diego: Academic Press.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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: https://www.algaebase.org/search/genus/detail/?genus_id=47340
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 07 October 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 27 April 2024
