Ectocarpus Lyngbye, 1819: 130

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Phaeophyceae
Order Ectocarpales
Family Ectocarpaceae

Holotype species: Ectocarpus siliculosus (Dillwyn) Lyngbye

Original publication:Lyngbye, H.C. (1819). Tentamen hydrophytologiae danicae continens omnia hydrophyta cryptogama Daniae, Holsatiae, Faeroae, Islandiae, Groenlandiae hucusque cognita, systematice disposita, descripta et iconibus illustrata, adjectis simul speciebus norvegicis. pp. [i]-xxxii, [1]-248, 70 pls. Hafniae [Copenhagen]: typis Schultzianis, in commissis Librariae Gyldendaliae.
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Type designated inSilva, P.C. (1952). A review of nomenclatural conservation in the algae from the point of view of the type method. University of California Publications in Botany 25: 241-323.

Taxonomic status: currently recognized as a distinct genus.

Description: The macrothallus is a uniseriate branched filament. The laterals are always scattered and each cell contains 1- more ribbon-shaped chloroplasts. The growth is diffuse intercalary. Pseudohairs are present. Plurilocular sporangia are terminal but they may also develop from normal vegetative cells below a pseudohair. Unilocular sporangia are terminal on short laterals. Ectocarpus is a widely distributed genus which shows great phenotypic plasticity. The life history is an isomorphic to slightly heteromorphic alternation of generations, but asexual strains also exist. Crossing experiments between various sexual strains have shown some degree of isolation; plasmogamy does not occur or there is chromosomal mismatch by meiosis in the F1-generation.

NCBI Nucleotide Sequences

Numbers of names and species: There are 487 species (and infraspecific) names in the database at present, of which 75 have been flagged as currently accepted taxonomically.

Names: ('C' indicates a name that is currently 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):

References
Wehr, J.D. (2003). Brown Algae. In: Freshwater Algae of North America, Ecology and Classification. (Wehr, J.D. & Sheath, R.G. Eds), pp. 757-774. San Diego: Academic Press.

Silberfeld, T., Racault, M.-F.L.P., Fletcher, R.L., Couloux, A., Rousseau, F. & De Reviers, B. (2011). Systematics and evolutionary history of pyrenoid-bearing taxa in brown algae (Phaeophyceae). European Journal of Phycology 46(4): 361-377.

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: http://www.algaebase.org/search/genus/detail/?genus_id=32853

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 June 2013.

Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:8335