Cyanonephron B.Hickel, 1985

Holotype species: Cyanonephron styloides B.Hickel

Original publication and holotype designation: Hickel, B. (1985). Cyanonephron styloides gen. et sp, nov., a new chroococcal blue-green alga (Cyanophyta) from a brackish lake. Algological Studies/Archiv für Hydrobiologie, Supplement Volumes 38-39: 111-118.

Description: Unicellular-colonial; colonies microscopic (to 29 _m diam.), free-floating, more or less spherical, oval to irregular, mucilaginous, with cells distant from one another, arranged more or less in a layer near the surface of the colony, connected by radially, pseudodichotomously branched, hyaline, mucilaginous stalks, radiating from the center of the colony; solitary cells surrounded by a thin layer of mucilage, but whole colony is not enveloped by a scarce, hyaline, diffluent slime. Cells elongated, slightly arcuated, with few peripherally and concentrically arranged thylakoids along the cell walls, joined to the stalks by their longer side, pale blue-green, yellowish green or greyish blue-green, without conspicuous inclusions or aerotopes. Cell division only in one direction in successive generations, perpendicular to the longer axis of the cell. Colonies dissociate into smaller cell groups to solitary cells. In fresh or slightly saline waters, described from large lakes in Germany (Schleswig Holstein) and in southern Sweden, usually near the seashore; probably widely distributed.

Information contributed by: J. Komárek. The most recent alteration to this page was made on 2015-03-03 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Most recent taxonomic treatment adopted: Komárek, J., Kaštovský, J., Mares, J. & Johansen, J.R. (2014). Taxonomic classification of cyanoprokaryotes (cyanobacterial genera) 2014, using a polyphasic approach. Preslia 86: 295-335.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=44858

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 03 March 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 April 2024