Pseudochlorella J.W.G.Lund, 1955: 104
Classification:
Empire Eukaryota
Kingdom Plantae
Phylum Chlorophyta
Class Trebouxiophyceae
Order Prasiolales
Family Koliellaceae
Holotype species: Pseudochlorella pyrenoidosa (Zeitler) J.W.G.Lund
Original publication and holotype designation:Lund, J.W.G. (1955). Pseudochlorella nom. nov. Österreich Botanische Zeitung 102: 36-37.
Taxonomic status: currently recognized as a distinct genus.
Nomenclatural notes
Substitute name for Chlorellopsis Zeitler 1954, non Reis 1923. - (19 Feb 2010) - M.D. Guiry
Description: Solitary cells forming irregular palmelloid aggregates. Cells round to ellipsoid or slightly irregular, mostly 5-12 µm long. Cell walls thin and smooth, with cellulose and pectin. Cells uninucleate; chloroplast massive and central, filling most of cell; pyrenoid single and central, with starch sheath. Asexual reproduction by division of protoplasts and by autospores; (2-) 8-18 spores per cells; released by rupture of parental wall. Autospores ellipsoid, 5-4.5 x 1.4-4 µm. Flagellated stages and sexual reproduction unknown. Pseudochlorella associated with lichens; reported from Austria. This alga requires further study and the taxonomic affinities are unclear. Genus traditionally assigned to Chlorellaceae. The central chloroplast and cell aggregates resemble Trebouxia. Solitary cells forming irregular palmelloid aggregates. Cells round to ellipsoid or slightly irregular, mostly 5-12 µm long. Cell walls thin and smooth, with cellulose and pectin. Cells uninucleate; chloroplast massive and central, filling most of cell; pyrenoid single and central, with starch sheath. Asexual reproduction by division of protoplasts and by autospores; (2-) 8-18 spores per cells; released by rupture of parental wall. Autospores ellipsoid, 5-4.5 x 1.4-4 µm. Flagellated stages and sexual reproduction unknown. Pseudochlorella associated with lichens; reported from Austria. This alga requires further study and the taxonomic affinities are unclear. Genus traditionally assigned to Chlorellaceae. The central chloroplast and cell aggregates resemble Trebouxia.
Numbers of names and species: There are 5 species (and infraspecific) names in the database at present, of which 2 have been flagged as currently accepted taxonomically.
Names: ('C' indicates a name that is currently 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):
Pseudochlorella aquatica (Vischer) Vischer S
Pseudochlorella pringsheimii (Shihar & Krauss) Darienko, Gustavs, Mudimu, Menendez, Schumann, Karsten, Friedl & Proschold C
Pseudochlorella pyrenoidosa (Zeitler) J.W.G.Lund C - type
Pseudochlorella subsphaerica Reisigl S
Pseudochlorella subsphaerica var. antarctica P.A.Broady C
References
Darienko, T., Gustavs, L., Mudimu, O., Menendez, C.R., Schumann, R., Karsten, U., Friedl, T. Proschold, T. (2010). Chloroidium, a common terrestrial coccoid green alga previously assigned to Chlorella (Trebouxiophyceae, Chlorophyta). European Journal of Phycology 45(1): 79-95.
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.
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=46099
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 25 May 2013.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:5794
