Oocystopsis H.Heynig, 1991: 293
Holotype species: Oocystopsis granulata (T.Hortobágyi) H.Heynig
Taxonomic status: currently recognized as a distinct genus.
Description: Cells occasionally solitary, usually 208 within an ovoid to spherical mucilage envelope up to 40 &m in diameter which bears numerous superficial granulations. Cells ovoid, 8-12-(14) x 6-8-(11.2) &m, the cell walls smooth. Chloroplasts 1-2, parietal with one pyrenoid. Asexual reproduction by (2)-4-8 autospores. Sexual reproduction and flagellated stages unknown. Oocystopsis, planktonic, known only from freshwater in Germany and Hungary. Differs from Oocystis in having granulations on the mucilage envelope. Similar to Granulocystis and Granulocystopsis but lacks granulate cell walls characteristic of these two genera. Cells occasionally solitary, usually 208 within an ovoid to spherical mucilage envelope up to 40 &m in diameter which bears numerous superficial granulations. Cells ovoid, 8-12-(14) x 6-8-(11.2) &m, the cell walls smooth. Chloroplasts 1-2, parietal with one pyrenoid. Asexual reproduction by (2)-4-8 autospores. Sexual reproduction and flagellated stages unknown. Oocystopsis, planktonic, known only from freshwater in Germany and Hungary. Differs from Oocystis in having granulations on the mucilage envelope. Similar to Granulocystis and Granulocystopsis but lacks granulate cell walls characteristic of these two genera.
NCBI Nucleotide Sequences
Numbers of names and species: There are 2 species (and infraspecific) names in the database at present.
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):
Oocystopsis coronata Lemmermann S
Oocystopsis granulata (T.Hortobágyi) H.Heynig P - type
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=45918
Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 18 May 2013.
