Oltmannsiellopsis M.Chihara & I.Inouye, 1986

Holotype species: Oltmannsiellopsis viridis (P.E.Hargraves & R.L.Steele) Chihara & I.Inouye

Original publication and holotype designation: Chihara, M., Inouye, I. & Takahata, N. (1986). Oltmannsiellopsis, a new genus of marine flagellate (Dunaliellaceae, Chlorophyceae). Archiv für Protistenkunde 132(4): 313-324.

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Description: Thallus unicellular (Oltmannsiellopsis unicellularis) or colonial (O. geminata and O. viridis); colonies composed of two or four cells; cells ovoid or ellipsoid, without a cell wall, quadriflagellate with flagella emerging from an anterior depression. Cells in colonies arranged in linear series with lateral margins closely appressed. Cells with a single cup-shaped chloroplast containing a distinct pyrenoid. Pyrenoid traversed by thylakoids and surrounded by several starch bodies. Cells with a large stigma, anterior or posterior. Nucleus associated with several light refractive granules, which are also present elsewhere in the cell. Asexual reproduction through longitudinal cell division. Sexual reproduction is unknown.

Information contributed by: Skaloud et al. (2018: 158).. The most recent alteration to this page was made on 2023-12-11 by E.A. Molinari Novoa.

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: Škaloud, P., Rindi, F., Boedeker, C. & Leliaert, F. (2018). Süßwasserflora von Mitteleuropa. Freshwater flora of central Europe: Chlorophyta V: Ulvophyceae. Vol. 13 pp. [i]-vii, [1]-288, 182 figures. Berlin: Springer Spektrum.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=45915

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 11 December 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024