Pulvinaster J.A.West, G.C.Zuccarello & J.L.Scott, 2007
Holotype 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). Correction to paper by West et al., Phycologia 46(3): 237-246. Phycologia 46(4): 478.
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, 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.The most recent alteration to this page was made on 4 Oct 2010 by M.D. Guiry.
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.
Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
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: 07 December 2007 by Wendy Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=50809
Please cite this record as:
Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 21 October 2020.