Ectocarpus Lyngbye, 1819, nom. cons.
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, -248, 70 pls. Hafniae [Copenhagen]: typis Schultzianis, in commissis Librariae Gyldendaliae.
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.
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 2015-10-19 by M.D. Guiry.
Taxonomic status: This name is of an entity that is currently accepted taxonomically.
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, 1 fig., 1 table.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=32853
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 19 October 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 11 December 2023