153,789 species and infraspecific names are in the database, 21,012 images, 59,564 bibliographic items, 413,155 distributional records.

Stichochrysis Pringsheim, 1955

Holotype species: Stichochrysis immobilis E.G.Pringsheim

Original publication and holotype designation: Pringsheim, E.G. (1955). Kleine Mitteilungen über Flagellaten und Algen I. Algenartige Chrysophyceen in Reinkultur. Archiv für Mikrobiologie 21: 401-410.

Taxonomic status: currently recognized as a distinct genus.

Most recent taxonomic treatment adopted: Kristiansen, J. & Preisig, H.R. (2001). Encyclopedia of Chrysophyte genera. Bibliotheca Phycologica 110: 1-260.

Description: Thallus short unbranched filament, mostly consisting of 2-4 cells. One-2 parietal chloroplasts. Reproduction by transverse division, then the new cells grow correspondingly in length. No swarmers or stomatocysts observed. Found in freshwater in U.S.A. It has been argued, based on studies of original cultures, that this organism in fact is a diatom and not a chrysophyte (Guillard and Hargraves, 1993).

Information contributed by: J. Kristiansen. The most recent alteration to this page was made on 29 Jan 2012 by M.D. Guiry.

Numbers of names and species: There is only one species or infraspecific name in the database at present, which 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
Nicholls, K.H. & Wujek, D.E. (2003). Chrysophycean Algae. In: Freshwater Algae of North America. (Wehr, J.D. & Sheath, R.G. Eds), pp. 471-510. San Diego: Academic Press.

Guillard, R.R.L. & Hargraves, P.E. (1993). Stichochrysis immobilis is a diatom, not a chyrsophyte. Phycologia 32(3): 234-236.

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: 27 May 2002 by Elizabeth Moran

Verified by: 29 January 2012 by M.D. Guiry

Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=44828

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 10 December 2018.

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