155,874 species and infraspecific names are in the database, 21,968 images, 60,248 bibliographic items, 439,627 distributional records.

Cephalothrix C.F.S.Malone et al., 2015

Classification:
Empire Prokaryota
Kingdom Eubacteria
Subkingdom Negibacteria
Phylum Cyanobacteria
Class Cyanophyceae
Subclass Oscillatoriophycidae
Order Oscillatoriales
Family Phormidiaceae
Subfamily Phormidioideae

Holotype species: Cephalothrix komarekiana C.F.S.Malone et al.

Original publication and holotype designation: Malone, C.F.S, Rigonato, J., Laughinghouse, H.D., Schmidt, É.C., Bouzon, Z.L., Wilmotte, A., Fiore, M.F. & Sant'Anna, C.L. (2015). Cephalothrix gen. nov. (Cyanobacteria): towards an intraspecific phylogenetic evaluation by multilocus analyses. International Journal of Systematic and Evolutionary Microbiology 69(9): 2993-3007.
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Taxonomic status: currently recognized as a distinct genus.

Description: Thallus fasciculated, blue–green. Cylindrical and straight trichomes, slightly attenuated, sometimes bent at the end, unconstricted or slightly constricted at the crosswalls, facultative hyaline and firm sheath, attached to trichome or wider. Cells wider than long, 2.0–3.4 (mean 2.6) mm long, 4.2–6.5 (mean 5.2) µm wide. Apical cell strongly or slightly capitate, sometimes with conical calyptra, cell content with facultative aerotopes. Hormogonia formation by biconcave necridic cells. Thylakoids radially oriented.

Origin of description: this description is from the original publication; it may have been modified slightly.

Numbers of names and species: There are 2 species names in the database at present, of which 2 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..

Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):

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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.

Created: 09 August 2017 by M.D. Guiry

Verified by: 09 August 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=52306

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 July 2019.

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