Gyrosigma obscurum (W.Smith) J.W.Griffith & Henfrey
Gyrosigma obscurum (W.Smith) J.W.Griffith & Henfrey 1856: 302; pl. 11, fig. 27
Original publication: Griffith, J.W. & Henfrey, A. (1856). The micrographic dictionary: a guide to the examination and investigation of the structure and nature of microscopic objects; illustrated by forty-one plates and eight hundred and sixteen woodcuts. pp. [i]-v, -696, 41 pls. London: John van Voorst.
Status of name
This name is of an entity that is currently accepted taxonomically.
Pleurosigma obscurum W.Smith
Origin of species name
Adjective (Latin), dark, shady, indisctinct (Stearn 1973).
This is a Brackish species.
Distribution by country
Detailed distribution with sources
(as Pleurosigma obscurum W.Smith)
Antarctic and the subantarctic islands: King George Island (Al-Handal & Wulff 2008).
(as Gyrosigma obscurum (W.Smith) J.W.Griffith & Henfrey)
Europe: Britain (Whitton et al. 2003).
North America: United States of America (Patrick & Reimer 1966).
Source of synonymy
Patrick, R. & Reimer, C.W. (1966). The diatoms of the United States exclusive of Alaska and Hawaii. Volume 1: Fragilariaceae, Eunotiaceae, Achnanthaceae, Naviculaceae. pp. 688. Philadelphia: Academy of Natural Sciences.
Eberle, M.E.. (2008). Recent Diatoms reported from the Central United States: Register of Taxa and Synonyms. Hays, Kansas, USA: Departemen of Biological Sciences, Fort Hays State University. Latest electronic version: 5 December 2008.
SAG Cultures may be viewed at http://sagdb.uni-goettingen.de/showstrains.php?genus=Gyrosigma&species=obscurum
Cultures from the Scandinavian Culture Collection of Algae at the University of Copenhagen (SCCAP) and Protozoa may be viewed at http://www.sccap.dk/search/algaebase.asp?Genus=Gyrosigma&Species=obscurum
Created: 11 April 2002 by M.D. Guiry
Verified by: 10 September 2011 by Salvador Valenzuela Miranda
Accesses: This record has been accessed by users 385 times since it was created.
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)
Sterrenburg, F.A.S. (1993). Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae). The identity of Pleurosigma obscurum W. Smith. Diatom Research 8(2): 447-456.
Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=32041
Cite this record as:
Salvador Valenzuela Miranda in Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 May 2013.
Algaebase taxon LSID: urn:lsid:algaebase.org:taxname:101675