152,930 species and infraspecific names are in the database, 20,947 images, 59,150 bibliographic items, 408,271 distributional records.

Pseudolessonia G.Y.Cho, N.G.Klochkova, T.N.Krupnova & Boo, 2006

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Ochrophyta
Class Phaeophyceae
Subclass Fucophycidae
Order Laminariales
Family Laminariaceae

Holotype species: Pseudolessonia laminarioides (Postels & Ruprecht) G.Y.Cho, N.G.Klochkova, T.N.Krupnova & Boo

Original publication and holotype designation: Cho, G.Y., Klochkova, N.G., Krupnova, T.N. & Boo, S.M. (2006). The reclassification of Lessonia laminarioides (Laminariales, Phaeophyceae): Pseudolessonia gen. nov. Journal of Phycology 42: 1289-1299.
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Precise date of publication11 December 2006

Taxonomic status: currently recognized as a distinct genus.

Gender: This genus name is currently treated as feminine.

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.

Taxonomic notes
Cho et al. (2006) conclude that basal splitting of the blade, formerly considered diagnostic of the family Lessoniaceae, is the result of convergent evolution. - (18 Jan 2007) - Wendy Guiry

Arthrothamnaceae (Jackson et al., 2017). - (2 May 2017) - Wendy Guiry

Description: Holdfast hapteroid; fibers numerous, dichotomously branched, discrete. Stipe dichotomous from base, terete, rugulose, short. Blades thin, wrinkled on surface, surface, margin entire, split from base upward, unilaterally arranged. Substance of blades chartaceous; that of stipe and branches horny, brittle. Sporangia sori on both sides of blade, spherical, elongated to irregularly shaped

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

Numbers of names and species: There is only one species or infraspecific name in the database at present, which has 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
Jackson, C., Salomaki, E.D., Lane, C.E. & Saunders, G.W. (2017). Kelp transcriptomes provide robust support for interfamilial relationships and revision of the little jnown Arthrothamnaceae (Laminariales) (Letter). Journal of Phycology 53(1): 1-6.

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: 18 January 2007 by M.D. Guiry

Verified by: 21 June 2014 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=50762

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 23 September 2018.

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