155,542 species and infraspecific names are in the database, 21,916 images, 60,163 bibliographic items, 438,693 distributional records.

Lophosiphonia Falkenberg, 1897

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Family Rhodomelaceae
Tribe Lophosiphonieae

Holotype species: Lophosiphonia obscura (C.Agardh) Falkenberg

Original publication and holotype designation: Schmitz, F. & Falkenberg, P. (1897). Rhodomelaceae. In: Die natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten insbesondere den Nutzpflanzen unter Mitwirkung zahlreicher hervorragender Fachgelehrten, Teil 1, Abteilung 2. (Engler, A. & Prantl, K. Eds), pp. 421-480. Leipzig: verlag von Wilhelm Engelmann.
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Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Díaz-Tapia, P., Maggs, C.A., West, J.A. & Verbruggen, H. (2017). Analysis of chloroplast genomes and a supermatrix inform reclassification of the Rhodomelaceae (Rhodophyta). Journal of Phycology 53(5): 920-937, 2 figs.

Taxonomic notes
Polysiphonieae? Amended description in Díaz-Tapia et al. (2017: 934). See Higher Taxon note. (algaebase). - (16 Nov 2017) - Wendy Guiry

Description: Thallus polysiphonous, ecorticate, mostly prostrate and dorsiventrally orientated, the apices of indeterminate axes curved toward the substratum. Attachment by unicellular rhizoids, cut off or not from ventral pericentral cells. Determinate erect endogenous branches, these simple or branched and often curved, arising in an irregular sequence on dorsal side of indeterminate axes. Trichoblasts usually on erect branches, spirally arranged or secund. Pericentral cells 4–18, the number variable in some species. Reproductive structures borne distally on erect branches. Spermatangial branches conical, replacing trichoblasts, branched in some species. Cystocarps ovoid. Tetrasporangia tetrahedrally divided, forming straight or spiral series in erect branches, 1 per segment.

Information contributed by: Huisman (2018). The most recent alteration to this page was made on 9 Oct 2018 by M.D. Guiry.

Numbers of names and species: There are 20 species names in the database at present, as well as 1 infraspecific names. Of the species names, 10 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.

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: 18 July 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=33074

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 17 June 2019.

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