154,587 species and infraspecific names are in the database, 21,108 images, 59,787 bibliographic items, 419,603 distributional records.

Spongoclonium Sonder, 1853

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Suborder Ceramiineae
Family Ceramiaceae
Subfamily Spongoclonioideae
Tribe Spongoclonieae

Holotype species: Spongoclonium conspicuum Sonder

Original publication and holotype designation: Sonder [O.G.] (1855 '1854'). [Plantae Muellerianae] Algae annis 1852 et 1853 collectae. Linnaea 26: 506-528.
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Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.

Description: Thallus erect or with decumbent lower branches, filamentous, ecorticate or partly corticated, with a single lateral branch per axial cell arranged in an alternate-distichous or spiral pattern. Spermatangia in subcylindrical heads. Procarps on 3-celled fertile axes, with the basal cell of the axis bearing 2 pericentral cells and the subapical cell bearing a 4-celled carpogonial branch. Carposporophyte with gonimolobes composed almost entirely of carposporangia, with a filamentous involucre. Tetrasporangia or polysporangia present, the former tetrahedrally divided, the latter with 8–16 or more spores; sporangia sessile or pedicellate.

Information contributed by: Huisman (2018). The most recent alteration to this page was made on 10 Oct 2018 by M.D. Guiry.

Comments: Common on coasts of southern Australia, often confused with denuded plants of the rare Lasiothalia hirsuta Harvey (see Wollaston 1990 for morphological detail).

Numbers of names and species: There are 22 species names in the database at present, of which 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.

References
Choi, H.-G., Kraft, G.T., Kim, H.-S., Guiry, M.D. & Saunders, G.W. (2008). Phylogenetic relationships among lineages of the Ceramiaceae (Ceramiales, Rhodophyta) based on nuclear small subunit rDNA sequence data. Journal of Phycology 44: 1033-1048.

Wynne, M.J. & Schneider, C.W. (2010). Addendum to the synoptic review of red algal genera. Botanica Marina 53: 291-299.

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: 30 December 2000 by M.D. Guiry

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Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=35433

Citing AlgaeBase
Please cite this record as:
Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 23 February 2019.

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