153,622 species and infraspecific names are in the database, 20,981 images, 59,421 bibliographic items, 412,629 distributional records.

Pseudodictyosphaerium Hindák, 1978

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Viridiplantae
Infrakingdom Chlorophyta infrakingdom
Phylum Chlorophyta
Subphylum Chlorophytina
Class Chlorophyceae
Order Sphaeropleales
Family Mychonastaceae

Holotype species: Pseudodictyosphaerium fluviatile (Hindák) Hindák

Currently accepted name for the type species: Mychonastes fluviatilis (Hindák) Krienitz, C.Bock, Dadheech & Proschold

Original publication and holotype designation: Hindák, F. (1978). New taxa and reclassifications in the Chlorococcales (Chlorophyceae). Preslia, Praha 50: 97-109.

Precise date of publicationOctober

Taxonomic status: currently regarded as a synonym of Mychonastes.

Most recent taxonomic treatment adopted: Tsarenko, P.M. (2011). Chlorococcales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 3: Chlorophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 232-264. Ruggell: A.R.A. Gantner Verlag K.-G..

Nomenclatural notes
Substitute name for Dictyosphaeriopsis F. Hindák 4 Mai 1978, non W. Schmidle 1903. - (23 Dec 2007) - Wendy Guiry

Description: Thalli comprising spherical to oval multicellular colonies to 60 µm diameter, with cells embedded in structureless, colorless mucilaginous envelope. Living cells at periphery of colony, firmly attached at ends of up to four generations of dichotomously arranged cell wall halves. Cells oval with rounded ends, 1.5-10 x 1.5-7 µm, smooth cell walls and distinct oil droplets. Cells uninucleate; chloroplast single and parietal, dividing prior to autospore formation; pyrenoids absent. Asexual reproduction by autospores, 2-4 per cell; released by longitudinal division of mother cell wall into 2-4 parts. Flagellated stages and sexual reproduction unknown. Pseudodictyosphaerium planktonic, sporadic in spring and fall; known from Europe in rivers, pools and lakes. Genus resembles Dictyosphaerium but differs based on absence of pyrenoids.

Information kindly contributed by F. Hindák & D. Garbary but may now be outdated.

Numbers of names and species: There are 10 species names in the database at present, of which 1 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.

References
Cambra Sánchez, J., Álvarez Cobelas, M. & Aboal Sanjurjo, M. (1998). Lista florística y bibliográfica de los clorófitos (Chlorophyta) de la Península Ibérica, Islas Baleares e Islas Canarias. pp. 1-614. Burgos: Asociación Española de Limnología.

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: 23 April 2002 by M.D. Guiry

Verified by: 26 January 2012 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=44267

Citing AlgaeBase
Please cite this record as:
M.D. 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 November 2018.

SITE © 1996 - 2018 M.D. Guiry. All rights reserved.

Website Design : 249 Design Studio