152,885 species and infraspecific names are in the database, 20,939 images, 59,127 bibliographic items, 408,269 distributional records.

Pringsheimiella Höhnel, 1920

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Ulvophyceae
Order Ulvales
Family Ulvellaceae

Holotype species: Pringsheimiella scutata (Reinke) Marchewianka

Currently accepted name for the type species: Ulvella scutata (Reinke) R.Nielsen, C.J.O'Kelly & B.Wysor

Original publication and holotype designation: Höhnel, F. von (1920). Mykologische Fragmente. Ann. Mycol. 18: 71-97.

Taxonomic status: currently regarded as a synonym of Ulvella.

Most recent taxonomic treatment adopted: Nielsen, R., Petersen, G., Seberg, O., Daugbjerg, N., O'Kelly, C.J. & Wysor, B. (2013). Revision of the genus Ulvella (Ulvellaceae, Ulvophyceae) based on morphology and tufA gene sequences of species in culture, with Acrochaete and Pringsheimiella placed in synonymy. Phycologia 52(1): 37-56.

Description: Monostromatic, pseudoparenchymatous thalli of radiating coherent filaments. Growth marginal with some peripheral cells bifurcate. Hairs formed under some conditions as thin outgrowths from ordinary vegetative cells. Chloroplast chloroplast with one to several pyrenoids. Sexual reproduction by biflagellate anisogametes known for type species; the two gamete types produced in different sporangia on monoecious plants. Asexual reproduction by bi- or quadriflagellate zoospores. Sporangia formed from ordinary vegetative cells of same size and shape apart from small exit tube. Motile cells produced after sequential division of protoplast. Spores with stellate germination pattern. Pringsheimiella species in salt and brackish waters, five epiphytic, P. scutata also on Mytilus edulis L., and P. conchyliophila Feldmann on mollusc shells in Mediterranean Sea. Pringsheimiella scutata contains siphonaxanthin in addition to normal green algal pigment complement.

Information kindly contributed by R. Nielsen but may now be outdated.

Numbers of names and species: There are 9 species names in the database at present, as well as 1 infraspecific names. Of the species names, 2 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
Brodie, J., Maggs, C.A. & John, D.M. (2007). Green seaweeds of Britain and Ireland. pp. [i-v], vi-xii, 1-242, 101 figs. London: British Phycological Society.

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: 13 March 2013 by Wendy Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=32811

Citing AlgaeBase
Please cite this record as:
Wendy Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 September 2018.

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