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Names and sources

Accepted Name Source
Nitzschia sigma (Kützing) W.Smith, 1853
  • GBIF Backbone Taxonomy
Synonym Source
Sigmatella sigma (Kützing) Frenguelli, 1923 synonym
  • GBIF Backbone Taxonomy
? sigma Kützing synonym
  • GBIF Backbone Taxonomy

Originally found in sources as doubtful taxon within Bacillariaceae

Classification

kingdom
Chromista
phylum
Ochrophyta
class
Bacillariophyceae
order
Bacillariales
family
Bacillariaceae
genus
Nitzschia
species
Nitzschia sigma
species
Amphipleura sigmoida W.Sm. 
species
Homoeocladia fasciculata (Grunow) Kuntze 
species
Homoeocladia valida (Cleve & Grunow) Kuntze, 1898 
species
Nitzschia consimilis (Grunow) M.Peragallo, 1903 
species
Nitzschia rigida Kuetzing, 1844 
subspecies
Nitzschia sigma subsp. curvula (Ehrenberg) Grunow 
subspecies
Nitzschia sigma subsp. intercedens Grunow 
subspecies
Nitzschia sigma subsp. rigida (Kützing) Grunow 
subspecies
Nitzschia sigma subsp. sigma 
subspecies
Nitzschia sigma subsp. sigmatella Grunow 
variety
Nitzschia sigma var. abludens Grunow, 1878 
variety
Nitzschia sigma var. calamae Frenguelli, 1928 
variety
Nitzschia sigma var. consimilis Grunow, 1878 
variety
Nitzschia sigma var. diminuta Grunow, 1881 
variety
Nitzschia sigma var. elongata Grunow 
variety
Nitzschia sigma var. fasciculata Grunow, 1878 
variety
Nitzschia sigma var. fonticola Hustedt, 1937 
variety
Nitzschia sigma var. genuina Grunow, 1878 
variety
Nitzschia sigma var. incisa Mereschkowsky, 1903 
variety
Nitzschia sigma var. indica Karsten, 1907 
variety
Nitzschia sigma var. intercedens Grunow, 1878 
variety
Nitzschia sigma var. latiuscula Grunow, 1881 
variety
Nitzschia sigma var. major Grunow, 1881 
variety
Nitzschia sigma var. maxima Grunow, 1878 
variety
Nitzschia sigma var. minor 
variety
Nitzschia sigma var. neogena Grunow, 1882 
variety
Nitzschia sigma var. purvula Brun 
variety
Nitzschia sigma var. rigida (Kütz.) Grunow 
variety
Nitzschia sigma var. rigida Grunow ex Van Heurck, 1880 
variety
Nitzschia sigma var. robusta Østrup, 1910 
variety
Nitzschia sigma var. scabra Cleve, 1883 
variety
Nitzschia sigma var. serpentina Skvortzow, 1927 
variety
Nitzschia sigma var. sigma 
variety
Nitzschia sigma var. sigmatella Grunow, 1878 
variety
Nitzschia sigma var. subcapitata Rabenhorst, 1864 
variety
Nitzschia sigma var. subrecta (Grunow) Grunow, 1878 
variety
Nitzschia sigma var. undulata Hohn & Hellerman, 1966 
form
Nitzschia fasciculata f. fasciculata 
form
Nitzschia sigma f. brevior Grunow, 1881 
form
Nitzschia sigma f. elongatae Grunow, 1881 
form
Nitzschia sigma f. genuina Cleve, 1882 
form
Nitzschia sigma f. habirshawii (Febiger ex Cleve & Moller) Grunow, 1881 
form
Nitzschia sigma f. indica Thomas & Gonzalves, 1965 
form
Nitzschia sigma f. longissima Grunow, 1881 
form
Nitzschia sigma f. longissima Manguin, 1952 
form
Nitzschia sigma f. major (Hustedt) Cleve-Euler, 1952 
form
Nitzschia sigma f. maxima Grunow, 1867 
form
Nitzschia sigma f. maxima Halden, 1929 
form
Nitzschia sigma f. valida Grunow, 1878 
form
Nitzschia valida f. valida 
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