Juranyiella Hortobagyi, 1962

Holotype species: Juranyiella javorkae (Hortobágyi) Hortobágyi

Original publication and holotype designation: Hortobágyi, T. (1962). Algen aus den Fischteichen von Buzsák IV. Nova Hedwigia 4: 21-55, 23 pls.

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Description: Cells solitary, very rarely in 4-celled colonies within persistent mother cell walls. Cells (4-) 7-14 x 2-4.5 µm, strongly lunate with a deep incision and broadly rounded apices. Cell walls roughened with irregular granulations which are often brownish, granulations denser on dorsal side of cell. Cells uninucleate; chloroplast single and parietal with one large pyrenoid. Asexual reproduction by autospores, (2-) 4 (-8) per sporangium, released by rupture of mother cell wall. During autospore formation the cell expands in size and retains its shape. Flagellated stages and sexual reproduction unknown. Juranyiella planktonic in eutrophic freshwater; reported from Czechoslovakia, France and Hungary. Genus similar to Nephrochlamys but differs in formation of large granulations on cell walls and presence of a pyrenoid; similar to Raphidocelis but differs in presence of a pyrenoid and the expansion of the mother cell wall prior to autospore release. The genus variously assigned to subfamilies Chlorelloideae or Oocystoideae.

Information contributed by: G. Dillard & D. Garbary. The most recent alteration to this page was made on 2011-12-20 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Most recent taxonomic treatment adopted: Tsarenko, P.M. (2011). Trebouxiophyceae. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 3: Chlorophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 61-108. Ruggell: A.R.A. Gantner Verlag K.-G..

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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: https://www.algaebase.org/search/genus/detail/?genus_id=44257

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 20 December 2011. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 26 April 2024