Cyanocohniella Kaštovský, Berrendero Gómez, Hladil & J.R.Johansen, 2014

Holotype species: Cyanocohniella calida Kaštovský, E.Berrendero, J.Hladil & J.R.Johansen

Original publication and holotype designation: Kaštovský, J., Berrendero Gómez, E., Hladil, J. & Johansen, J.R. (2014). Cyanocohniella calida gen. et sp. nov. (Cyanobacteria: Aphanizomenonaceae) a new cyanobacterium from the thermal springs from Karlovy Vary, Czech Republic. Phytotaxa 181(5): 279-292, 5 figs, 1 table.

Description: Thallus blue-green to dark green, filaments hypervariable in the course of the life cycle. Motile hormogonia germinating from akinetes, composed of 4–8 cells. Filaments developing from hormogonia with cylindrical cells, not constricted or slightly constricted at cross-walls, without sheath or with fine colorless or slightly yellowish, unlamellated sheath, slightly attenuated towards apices, with apical cells longer than wide, oval to conical, lacking calyptra. Filaments of next phase with marked constrictions at the cell walls, attenuated towards apices, with cells becoming oval to spherical, producing intercalary oval to spherical heterocytes and one- to two-celled apical hormocytes, with apical cells similar in form to common cells of the filament. Filament of mature phase with cells spherical, oval or irregularly shaped, with cells irregularly arranged in ensheathed filaments, sometimes evidencing cell division in two planes, producing partly biseriate filaments. Akinetes single or in series, with cell walls often yellowish. Necridia absent during entire life cycle.

Origin of description: this description is from the original publication; it may have been modified slightly. The most recent alteration to this page was made on 2023-12-26 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 masculine.

Most recent taxonomic treatment adopted: Strunecký, O., Ivanova, A.P. & Mares, J. (2022 '2023'). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): 12-51.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=51695

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 26 December 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 07 May 2024