Dicellula Svirenko, 1926

Holotype species: Dicellula planctonica Svirenko

Currently accepted name for the type species: Dicellula geminata (Printz) Korshikov

Original publication and holotype designation: Svirenko, D.O. (1926). Al'gologicheskiye issledovaniya r. Dnepra v 1920-1924 gg. [Phycological Research on the Dnieper River in 1920-1924]. Russkii Arkhiv Protistologii 5(1-2): 63-109, plate 4. [in Russian with German abstract]

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Description: Thalli colonial, mostly forming 2-celled coenobia, but 4-celled coenobia or single cells are also described; surrounding mucilage envelope poorly developed. Cells in coenobium parallel, attached with their long sides. Cells oval to long oval, 8-22 x 5-12 µm, with many fine bristles 8-20 µm scattered on cell wall; brownish incrustations often present at base of bristles. Cells uninucleate; 1-2 (-8) chloroplasts each with one pyrenoid. Asexual reproduction by autospores; 4-8 per sporangium, organized into 2-celled coenobia. Autospores released by gelatinization of mother cell wall. Sexual reproduction and flagellated stages unknown. Dicellula planktonic in eutrophic freshwater; reported from Europe, Asia, Jamaica and USA. Genus usually assigned to Micractinaceae or Scenedesmaceae. Siderocystopsis, distinguished by occurrence of only solitary cells is a likely synonym.

Information contributed by: E. Hegewald. The most recent alteration to this page was made on 2023-08-31 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: Tsarenko, P.M. (2011). Trebouxiophyceae. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 3: Chlorophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 61-108. Ruggell: A.R.A. Gantner Verlag K.-G..

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=44250

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 31 August 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 23 November 2024