Chamaecalyx Komárek & Anagnostidis, 1986
Holotype species: Chamaecalyx swirenkoi (Shirshov) Komárek & Anagnostidis
Original publication and holotype designation: Komárek, J. & Anagnostidis, K. (1986). Modern approach to the classification system of cyanophytes, 2 - Chroococcales. Arch. Hydrobiol./Algolog. Stud. 43: 157-226.
Request PDFDescription: Unicellular; solitary cells or groups of cells, joined by one end to the substrate. Cells always polarized, attached by one (basal, morphologically distinct) end to the substrate, usually by help of a pad or leg, and with free, widely rounded apical end; they are usually club-shaped, narrowed to the basis. Around cells firm, thin, sometimes layered sheaths, opened at the apex during the cell division (pseudovagina). Cell content gray, grayish blue-green, blue-green, yellowish or pinkish red, finely granular, always without aerotopes. Thylakoids probably peripherally situated. Reproduction asymmetrical cell division: cells firstly divide perpendicularly to the long (vertical) axis of the cell, later the apical part divides successively (or almost simultaneously) in different planes into several daughter cells (exocytes), which liberate from the pseudovagina by the apical opening. Rarely the whole cell divides into daughter cells. The upper ("fertile") part of the cell can separate form the "basal" part and divide into the exocytes several times. Nine species are marine, occurring in the littoral of different seas, mainly attached to other algae. Three freshwater species are known from the periphyton of algae and submerged plants in creeks and from the littoral of pools and lakes from the northern temperate zone.
Information contributed by: J. Komárek. The most recent alteration to this page was made on 2022-08-16 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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=43061
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 16 August 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024
