Granulocystis Hindák, 1977

Holotype species: Granulocystis verrucosa (J.V.Roll) Hindák

Original publication and holotype designation: Hindák, F. (1977). Studies on the chlorococcal algae (Chlorophyceae). I. Biologicke Práce 23: 1-192.

Description: Cells solitary or in 2-4-8-(?16)-celled colonies enclosed within the expanded mother cell wall which exhibits the granulation characteristic of the species or, occasionally, enclosed within a structureless mucilaginous envelope to 60 µm diameter. Cells oval, fusiform or cylindrical, 5.5-16.5 x 2.5-11.2 µm. Cell wall with granules or spines over the entire surface, the granules at the poles sometimes adjoined. Chloroplast single, parietal, with single pyrenoid. Asexual reproduction by 2-4-8-(?16) autospores retained for some time within the expanded mother cell wall but ultimately released by rupture or mucilaginization of the mother cell wall. Sexual reproduction and flagellated stages unknown. Granulocystis, planktonic or benthic, reported from freshwater in Czechoslovakia, Hungary, Ukraine and India (?). Similar to Granulocystopsis Hindák which, however, has the surface granulations only at the apices and equatorial region of the cell.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=47423

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