156,760 species and infraspecific names are in the database, 22,033 images, 60,593 bibliographic items, 449,807 distributional records.

Nwynea Searles, 1989

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Ceramiales
Family Callithamniaceae
Subfamily Callithamnioideae
Tribe Callithamnieae

Holotype species: Nwynea grandispora Searles

Original publication and holotype designation: Searles, R.B. & Schneider, C.W. (1989). New genera and species of Ceramiaceae (Rhodophyta) from the southeastern United States. Journal of Phycology 25: 731-740.

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 of erect monosiphonous, ecorticate filaments with branched determinate branchlets which are whorled, paired or alternate and radial below and alternate and radial above on indeterminate branches borne directly on axial cells. Sexual plants unknown. Tetrasporangia large, sessile on cells of indeterminate axes, tetrahedrally divided. Nwynea is unique in Ceramiaceae in bearing tetrasporangia directly on axial cells.

Information contributed by: E.M. Wollaston. The most recent alteration to this page was made on 31 Aug 2011 by M.D. Guiry.

Comments: Known only from the type plant trawled from 40 m in June from Frying Pan Shoals, Onslow Bay, North Carolina, USA.

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.

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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

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Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=42506

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 17 November 2019.

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