160,121 species and infraspecific names are in the database, 22,602 images, 62,223 bibliographic items, 471,444 distributional records.

Pulvinus J.A.West, G.C.Zuccarello & J.L.Scott, 2007, nom. illeg.

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Proteorhodophytina
Class Compsopogonophyceae
Order Compsopogonales
Family Compsopogonaceae

Holotype species: Pulvinus veneticus J.A.West, G.C.Zuccarello & J.L.Scott

Currently accepted name for the type species: Pulvinaster venetus J.A.West, G.C.Zuccarello & J.L.Scott

Original publication and holotype designation: West, J.A., Zuccarello, G.C., Scott, J.L., West, K.A. & Loiseaux de Goer, S. (2007). Pulvinus veneticus gen. et sp. nov. (Compsopogonales, Rhodophyta) from Vanuatu. Phycologia 46(3): 237-246.
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Taxonomic status: currently regarded as a synonym of Pulvinaster.

Most recent taxonomic treatment adopted: West, J.A., Zuccarello, G.C., Scott, J.L., West, K.A. & Loiseaux de Goer, S. (2007). Pulvinus veneticus gen. et sp. nov. (Compsopogonales, Rhodophyta) from Vanuatu. Phycologia 46(3): 237-246.

Nomenclatural notes
Illegitimate: the term "pulvinus" is a Latin technical term in use in morphology, it may not be used as a generic name. Corrigendum in Phycologia, Vol. 46 (4); 478: Pulvinaster gen. nov., q.v. - (19 Nov 2007) - M.D. Guiry

Description: Thallus, a prostrate cushion up to 500 microns diameter, of uniseriate-branched filaments, quadrate to ovate cells (9-14 microns diameter), uninucleate, with a bluish-green parietal lobed or spiral plastid lacking a pyrenoid. Sometimes forming unattached branched filaments with elongate cells (8-10 x 30-55 microns). Reproduction by monosporangia successively formed from lateral branch cells or by gelatinisation of cell walls of a thallus sector. Spherical spores, 6 to 10 microns diameter, show a gliding movement. Golgi associated with endoplasmic reticulum, plastid with peripheral thylakoid. No pit connections between derivative cells. Epiphytic on other algae. Low molecular weight carbohydrate is floridoside.

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Numbers of names and species: There is only one species or infraspecific name in the database at present.

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):

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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: 21 June 2007 by M.D. Guiry

Verified by: 03 July 2017 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=50793

Citing AlgaeBase
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 01 March 2021.

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