153,840 species and infraspecific names are in the database, 21,012 images, 59,576 bibliographic items, 413,468 distributional records.

Ectocarpus Lyngbye, 1819, nom. cons.

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Phaeophyceae
Subclass Fucophycidae
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 in Silva, 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.

Gender: This genus name is currently treated as masculine.

Most recent taxonomic treatment adopted: Silberfeld, T., Rousseau, F. & Reviers, B. de (2014). An updated classification of brown algae (Ochrophyta, Phaeophyceae). Cryptogamie Algologie 35(2): 117-156.

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.

Information contributed by: P. M. Pedersen. The most recent alteration to this page was made on 19 Oct 2015 by M.D. Guiry.

Numbers of names and species: There are 351 species names in the database at present, as well as 142 infraspecific names. Of the species names, 100 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):

Click here to also show infraspecific names in the list below.

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.

Racault, M.-F.L.P., Fletcher, R.L., De Reviers, B., Cho, G.Y., Boo, S.M., Parente, M.I. & Rousseau, F. (2009). Molecular phylogeny of the brown algal genus Petrospongium Nägeli ex Kütz. (Phaeophyceae) with evidence for Petrospongiaceae fam. nov. Cryptogamie, Algologie 30(2): 111-123.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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: 28 December 2000 by M.D. Guiry

Verified by: 19 October 2015 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=32853

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 13 December 2018.

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