PENNATE DIATOMS WITH RAPHES - Bacillariophyceae (S-Z)
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Names in bold italic print are current names for taxa reported from the central United States.
Names in standard italic print are synonyms reported in the references cited with them.

For example, Sellaphora pupula (Kütz.) Meresch. was reported under that name from Kansas by Harris and Eberle (2001), and it was reported under the synonym Navicula pupula Kütz. in several references, which are listed under the entry for that name in another section of this list.

The entry for Sphinctocystis elliptica (Bréb. ex Kütz.) Kuntze indicates that this name (reported by Elmore, 1921) is a synonym of Cymatopleura elliptica (Bréb.) W. Sm., which is included in another section of this list.

The names of the states are abbreviated with their postal codes: CO = Colorado, KS = Kansas, MO = Missouri, NE = Nebraska, OK = Oklahoma.
Scoliopleura peisonis Grun.
    KS: Harris & Eberle (2001)
Sellaphora bacillum (Ehr.) D. Mann
        Synonyms:
            Navicula bacillum Ehr.
            Navicula bacillum f. minor Grun.
            Navicula pseudobacillum Grun.
Sellaphora laevissima (Kütz.) D. Mann
        Synonyms:
            Navicula bacilliformis Grun.
            Navicula laevissima Kütz.
Sellaphora pupula (Kütz.) Meresch.
    KS: Harris & Eberle (2001)
        Synonyms:
            Navicula pupula Kütz.
Sellaphora pupula f. minutula (Choln.) comb. nov.?
        Synonyms:
            Navicula pupula f. minutula Choln.
Sellaphora pupula var. capitata (Skv. & Meyer) comb. nov.?
        Synonyms:
            Navicula pupula var. capitata Skv. & Meyer
Sellaphora pupula var. elliptica (Hust.) comb. nov.?
        Synonyms:
            Navicula pupula var. elliptica Hust.
Sellaphora pupula var. mutata (Krasske) comb. nov.?
        Synonyms:
            Navicula pupula var. mutata (Krasske) Hust.
Sellaphora pupula var. rectangularis (Greg.) Meresch.
    KS: Harris & Eberle (2001)
        Synonyms:
           Navicula pupula var. rectangularis (Greg.) Grun.
Sellaphora seminulum (Grun.) D. Mann
        Synonyms:
            Navicula seminulum Grun.
Sellaphora seminulum var. hustedtii (Patr.) comb. nov.?
        Synonyms:
            Navicula seminulum var. hustedtii Patr.
Sellaphora vitabunda (Hust.) D. Mann
        Synonyms:
            Navicula vitabunda Hust.
Sphinctocystis elliptica (Bréb. ex Kütz.) Kuntze = Cymatopleura elliptica (Bréb.) W. Sm.
    KS: Elmore (1921)
    NE: Elmore (1921)
Sphinctocystis librilis (Ehr.) Hass. = Cymatopleura solea (Bréb.) W. Sm.
    KS: Elmore (1921)
    NE: Elmore (1921)
Stauroneis acuta W. Sm.
    KS: Branson (1966)
    NE: Andersen & Walker (1920), Elmore (1921)
    Plains States: Patrick & Reimer (1966)
Stauroneis anceps Ehr.
    KS: Curtis (1901), Wolle (1889), Wujek et al. (1980)
    NE: Andersen & Walker (1920), Elmore (1921), Webber (1890)
    OK: Pfiester et al. (1979), Troeger (1978, 1983), Wilhm et al. (1978)
    Plains States: Patrick & Reimer (1966)
        Synonyms:
            Stauroneis anceps var. amphicephala (Kütz.) V.H.
Stauroneis anceps f. gracilis Rab.
    OK: Troeger (1978)
    Plains States: Patrick & Reimer (1966)
Stauroneis anceps f. linearis (Ehr.) Hust.
    Plains States: Patrick & Reimer (1966)
Stauroneis anceps var. amphicephala (Kütz.) V.H. = Stauroneis anceps Ehr.
    NE: Andersen & Walker (1920)
Stauroneis anceps var. americana Reim.
    KS: Wujek et al. (1980)
Stauroneis ignorata Hust.
    NE: Patrick & Reimer (1966)
    OK: Troeger (1983)
Stauroneis kriegeri Patr.
    OK: Troeger (1983)
Stauroneis legumen (Ehr.) Kütz.
    NE: Elmore (1921)
Stauroneis linearis Ehr. = Stauroneis smithii Grun.
    NE: Elmore (1921)
Stauroneis nana Hust.
    OK: Troeger (1983)
Stauroneis nobilis Schum.
    OK: Pfiester et al. (1979)
Stauroneis nobilis var. baconiana (Stodd.) Reim.
    OK: Pfiester et al. (1979), Troeger (1978)
Stauroneis palustris Hust.
    NE: Hoagland et al. (1982)
Stauroneis parvula Jan. sensu Elmore = Achnanthes exigua Grun. [see Patrick and Reimer (1966:257)]
    NE: Elmore (1921)
Stauroneis phoenicenteron (Nitz.) Ehr.
    KS: Curtis (1901), Wenke & Eberle (1986), Wolle (1889), Wujek (1965)
    NE: Andersen & Walker (1920), Elmore (1921)
    OK: Koch & Risser (1974), Troeger (1978)
    Plains States: Patrick & Reimer (1966)
Stauroneis phoenicenteron f. gracilis (Ehr.) Hust.
    KS: Czarnecki & Reinke (1981)
    OK: Troeger (1978)
Stauroneis producta Grun.
    KS: Wolle (1889)
Stauroneis phyllodes Ehr.
        Synonyms:
            Navicula phyllodes (Ehr.) Ehr.
Stauroneis semen Ehr. = Luticola mutica (Kütz.) D. Mann
    NE: ?Ehrenberg (1856)
Stauroneis smithii Grun.
    KS: Wujek (1965)
    NE: Andersen & Walker (1920)
    OK: Koch & Risser (1974), Troeger (1983)
    Plains States: Patrick & Reimer (1966)
        Synonyms:
            Stauroneis linearis Ehr.
Stauroneis spicula (Hicke) Grun.
    KS: Czarnecki & Reinke (1981), Wenke & Eberle (1986)
        Synonyms:
            Navicula spicula (Hicke) Cl.
Stauroneis tenuissima = ?
    NE: Andersen & Walker (1920)
Stauroneis wislouchii Poret. & Anis. = Staurophora wislouchii (Poret. & Anis.) D. Mann
    KS: Czarnecki & Reinke (1981)
Staurophora wislouchii (Poret. & Anis.) D. Mann
        Synonyms:
            Stauroneis wislouchii Poret. & Anis.
Stauroptera isostauron Ehr. = Pinnularia isostauron (Ehr.) Cl.
    OK: Ehrenberg (1856)
Stauroptera microstauron Ehr. = Pinnularia microstauron (Ehr.) Cl.
    NE: Ehrenberg (1856)
Stenopterobia curvula (W. Sm.) Kramm.
        Synonyms:
            Surirella intermedia Lewis
Surirella amphioxys W. Sm.
        Synonyms:
            Surirella moelleriana Grun. ex Möll.
Surirella angusta Kütz. [also as S. angustata]
    KS: Harris & Eberle (2001), Powers (1969), Wenke & Eberle (1986), Williams et al. (1979), 
           Wujek et al. (1980)
    MO: M.K. Morris et al. (1979a), Pamperl (1980)
    NE: F.A. Morris et al. (1979)
    OK: Cooper & Wilhm (1975), Hern et al. (1979), Seyfer & Wilhm (1977), Troeger (1983), Wilhm et al. (1977),
           Wilhm et al. (1978)
Surirella apiculata W. Sm. = Surirella minuta Bréb.
    KS: Curtis (1901)
Surirella bifrons Ehr.
    NE: ?Ehrenberg (1856)
    OK: Ehrenberg (1856)
Surirella biseriata Bréb.
    NE: Elmore (1921)
Surirella brebissonii Kramm. & L.-Bert.
        Synonyms:
            Surirella ovalis var. ovata (Kütz.) V.H.
            Surirella ovata Kütz.
Surirella brightwellii W. Sm.
    CO: WPSS (1961-1963)
    KS: Wenke & Eberle (1986), Williams (1962), WPSS (1961-1963, 1966), Wujek et al. (1980)
    NE: WPSS (1961-1963)
    OK: Seyfer & Wilhm (1977), Wilhm et al. (1977), Wilhm et al. (1978), Williams (1962, 1964), 
          WPSS (1961-1963, 1966)
Surirella craticula Ehr. = Craticula?
    NE: Ehrenberg (1856)
Surirella crumena Bréb.
    KS: Harris & Eberle (2001)
        Synonyms:
            Surirella ovata var. crumena (Bréb.) Hust.
Surirella delicatissima Lewis
    KS: Curtis (1901)
Surirella didyma Kütz.
    OK: Pfiester et al. (1979)
Surirella elegans Ehrenb.
    NE: Elmore (1921)
    OK: Troeger (1978)
Surirella gracilis Grun.
    OK: Troeger (1978)
Surirella intermedia Lewis = Stenopterobia curvula (W. Sm.) Kramm.
    KS: Curtis (1901)
Surirella linearis W. Sm.
    KS: Wujek (1965), Wujek et al. (1980)
    NE: Elmore (1921)
    OK: Koch & Risser (1974), Pfiester et al. (1979)
Surirella linearis var. helvetica (Brun) Meist.
    KS: ?Williams et al. (1979)
Surirella minuta Bréb.
        Synonyms:
            Surirella apiculata W. Sm.
            Surirella ovalis var. pinnata (W. Sm.) V.H.
            Surirella ovata var. pinnata (W. Sm.) Brun
            Surirella ovata var. salina (W. Sm.) Rab.
            Surirella panduriformis Kütz.
Surirella moelleriana Grun. ex Möll. sensu Schmidt et al. (1874-1959) = Surirella amphioxys W. Sm.
    [Surirella moelleriana Grun. ex Möll. sensu Hustedt (1930) = Surirella gracilis Grun. (Krammer & Lange-Bertalot
       1988:188-190)]
    KS: Curtis (1901)
Surirella myodon Ehr.
    NE: Ehrenberg (1856)
    OK: Ehrenberg (1856)
Surirella nervosa (A.S.) A. Mayer
        Synonyms:
            Surirella tenera var. nervosa A.S.
Surirella nobilis W. Sm. = Surirella robusta Ehr.
    KS: Curtis (1901)
Surirella ovalis Bréb.
    KS: ?Harris & Eberle (2001), McFarland et al. (1964), Wenke & Eberle (1986), Wujek (1965)
    NE: Elmore (1921)
    OK: Koch & Risser (1974), Pfiester et al. (1979), Seyfer & Wilhm (1977), Wilhm et al. (1977), 
          Wilhm et al. (1978)
Surirella ovalis var. ovata (Kütz.) V.H. = Surirella brebissonii Kramm. & L.-Bert.
    NE: Andersen & Walker (1920), Webber (1890)
Surirella ovalis var. pinnata (W. Sm.) V.H. = Surirella minuta Bréb.
    NE: Andersen & Walker (1920)
Surirella ovata Kütz. = Surirella brebissonii Kramm. & L.-Bert.
    CO: WPSS (1961-1963)
    KS: Curtis (1901), Wenke & Eberle (1986), Williams (1962), Williams et al. (1979), 
           WPSS (1961-1963, 1966), Wujek et al. (1980)
    MO: Pamperl (1980), Williams (1962), WPSS (1961-1963), WPSS (1966)
    NE: F.A. Morris et al. (1979), Hoagland et al. (1982), Roemer et al. (1984), Williams (1962), 
          WPSS (1961-1963, 1966)
    OK: Cooper & Wilhm (1975), Hern et al. (1979), Koch (1975), Koch & Risser (1974), Pfiester et al. (1979),
           Seyfer & Wilhm (1977), Troeger (1978, 1983), Troeger & Menzel (1986), Wilhm et al. (1977),
           Wilhm et al. (1978), Williams (1962), WPSS (1961-1963, 1966)
Surirella ovata var. crumena (Bréb.) Hust. = Surirella crumena Bréb.
    KS: Wujek et al. (1980)
Surirella ovata var. pinnata (W. Sm.) Brun = Surirella minuta Bréb.
    KS: Wenke & Eberle (1986), Wujek et al. (1980)
    NE: Andersen & Walker (1920), Hoagland et al. (1982)
Surirella ovata var. salina (W. Sm.) Rab. = Surirella minuta Bréb.
    KS: Powers (1969)
Surirella palmerii Boyer = Surirella tenera var. palmerii (Boyer) Hust.
    KS: Powers (1969)
Surirella panduriformis Kütz. = Surirella minuta Bréb.?
    KS: Curtis (1901) [see Eberle (1982:128)]
Surirella patella Kütz.
        Synonyms:
            Surirella suevica Zeller ex Grun.
Surirella regula Ehr. = Cymatopleura solea var. regula (Ehr.) Grun.
    OK: Ehrenberg (1856)
Surirella robusta Ehr.
    KS: Curtis (1901), Wujek (1965)
    NE: Andersen & Walker (1920), Elmore (1921)
    OK: Pfiester et al. (1979), Troeger (1978)
        Synonyms:
            Surirella nobilis W. Sm.
Surirella robusta var. splendida (Ehr.) V.H. = Surirella splendida (Ehr.) Kütz.
    KS: McFarland et al. (1964)
    OK: Pfiester et al. (1979), Seyfer & Wilhm (1977), Troeger (1978, 1983)
Surirella saxonica Auersw. ex Rab.
    NE: Elmore (1921)
Surirella sigmoidea Ehr. = ?
    OK: Ehrenberg (1856)
Surirella splendida (Ehr.) Kütz.
    KS: Curtis (1901), Wolle (1889)
        Synonyms:
            Surirella robusta var. splendida (Ehr.) V.H.
Surirella spiralis Kütz.
    KS: Wolle (1889)
    NE: Andersen & Walker (1920), Elmore (1921)
Surirella striatula Turp.
    KS: ?Harris & Eberle (2001), Wenke & Eberle (1986), Williams (1962, 1964), WPSS (1961-1963, 1966)
    OK: Ehrenberg (1856), Koch (1975), Pfiester et al. (1979), WPSS (1961-1963)
Surirella suevica Zeller ex Grun. = Surirella patella Kütz.
    KS: Curtis (1901)
Surirella tenera Greg.
    KS: Curtis (1901)
Surirella tenera var. nervosa A.S. = Surirella nervosa (A.S.) A. Mayer
    KS: Curtis (1901), Wenke & Eberle (1985)
Surirella tenera var. palmerii (Boyer) Hust.
        Synonyms:
            Surirella palmerii Boyer
Surirella tenera var. splendidula A.S.
    KS: Curtis (1901)
Surirella undulata Ehr. = ?
    NE: Ehrenberg (1856)
    OK: Ehrenberg (1856)

Tropidoneis lepidoptera (Greg.) Cl. = Plagiotropis lepidoptera (Greg.) Reim.
    KS: Reinke (1979a)
    OK: Koch (1975)
Tryblionella acuta (Cl.) D. Mann?
        Synonyms:
            Nitzschia acuta Cl.
Tryblionella angustata W. Sm.
        Synonyms:
            Homoeocladia angustata (W. Sm.) Kuntze
            Nitzschia angustata (W. Sm.) Grun.
Tryblionella apiculata Greg.
        Synonyms:
            Homoeocladia apiculata (Greg.) Kuntze
            Nitzschia apiculata (Greg.) Grun.
Tryblionella calida (Grun. in Cl. & Grun.) D.G. Mann
    KS: Harris & Eberle (2001)
Tryblionella debilis Arn.
        Synonyms:
            Nitzschia tryblionella var. debilis (Arn.) A. Mayer
Tryblionella gracilis W. Sm. [see Tryblionella tryblionella (Hantz.) Proch.]
Tryblionella hungarica (Grun.) D. Mann
    KS: Harris & Eberle (2001)
        Synonyms:
            Homoeocladia hungarica (Grun.) Kuntze
            Nitzschia hungarica Grun.
Tryblionella levidensis W. Sm.
    KS: Harris & Eberle (2001)
        Synonyms:
            Nitzschia tryblionella var. levidensis (W. Sm.) Grun.
Tryblionella punctata W. Sm.
        Synonyms:
            Homoeocladia punctata (W. Sm.) Kuntze
Tryblionella tryblionella (Hantz.) Proch. = Tryblionella gracilis W. Sm.?
    KS: Harris & Eberle (2001)
        Synonyms:
            Homoeocladia tryblionella (Hantz.) Kuntze
            Nitzschia tryblionella Hantz.
Tryblionella umblicata (Hust.) D. Mann
        Synonyms:
            Nitzschia umblicata Hust.
Tryblionella victoriae Grun.
        Synonyms:
            Nitzschia tryblionella var. victoriae (Grun.) Grun.
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