PENNATE DIATOMS WITH RAPHES - Bacillariophyceae (F-M)
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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, Fallacia pygmaea (Kütz.) Stickle & D. Mann was reported under that name from Kansas by Harris and Eberle (2001), and it was reported under the synonym Navicula pygmaea Kütz. in several references, which are listed under the entry for that name in another section of this list.

The entry for Gomphonema eriense Grun. indicates that this name (reported by Elmore, 1921) is a synonym of Gomphoneis eriense (Grun.) Skv. & Meyer, which is included elsewhere in this list.

The names of the states are abbreviated with their postal codes: CO = Colorado, KS = Kansas, MO = Missouri, NE = Nebraska, OK = Oklahoma.

Fallacia insociabilis (Krasske) D. Mann
        Synonyms:
            Navicula insociabilis Krasske
Fallacia pygmaea (Kütz.) Stickle & D. Mann
    KS: Harris & Eberle (2001)
        Synonyms:
            Navicula pygmaea Kütz.
Fallacia subhamulata (Grun.) D. Mann
        Synonyms:
            Navicula subhamulata Grun.
Fallacia tenera (Hust.) D. Mann
        Synonyms:
            Navicula tenera Hust.
Frustulia interposita (Lewis) Cl.
    OK: Wilhm et al. (1977)
Frustulia rhomboides (Ehr.) DeT.
    KS: Branson (1966)
    OK: Pfiester et al. (1979)
Frustulia rhomboides var. amphipleuroides (Grun.) Cl.
    KS: Wenke & Eberle (1985)
Frustulia rhomboides var. capitata (A. Mayer) Patr.
    OK: Pfiester et al. (1979)
Frustulia rhomboides var. saxonica (Rab.) DeT.
    Plains States: Patrick & Reimer (1966)
Frustulia vulgaris (Thw.) DeT.
    KS: Wenke & Eberle (1985, 1986)
    OK: Cooper & Wilhm (1975), Koch & Risser (1974), Pfiester et al. (1979), Seyfer & Wilhm (1977), 
          Troeger (1983), Wilhm et al. (1977)
    Plains States: Patrick & Reimer (1966)
        Synonyms:
            Brebissonia vulgaris (Thw.) Kuntze
            Navicula rhomboides var. ?

Gloeonema gracile Ehr. = Cymbella?
    NE: Ehrenberg (1856)
Gloeonema paradoxum Ehr. = Cymbella?
    NE: Ehrenberg (1856)
    OK: ?Ehrenberg (1856)
Gomphoneis eriense (Grun.) Skv. & Meyer
    NE: Hoagland et al. (1982)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema eriense Grun.
Gomphoneis exigua (Kütz.) Medlin
        Synonyms:
            Gomphonema exiguum Kütz.
Gomphoneis herculeana (Ehr.) Cl.
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema herculeanum Ehr.
Gomphoneis herculeana var. robusta (Grun.) Cl.
    NE: Hoagland et al. (1982), Roemer et al. (1984)
Gomphonema abbreviatum Ag.
    KS: Curtis (1901)
    MO: Pamperl (1980)
    OK: Pfiester et al. (1979)
Gomphonema acuminatum Ehr.
    KS: Wujek et al. (1980)
    NE: Andersen & Walker (1920), Elmore (1921)
    OK: Pfiester et al. (1979), Troeger (1983), Wilhm et al. (1978)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema acuminatum var. coronatum (Ehr.) Rab.
Gomphonema acuminatum var. coronatum (Ehr.) Rab. = Gomphonema acuminatum Ehr.
    KS: Wujek (1965)
    OK: Koch & Risser (1974)
Gomphonema affine Kütz.
    KS: Curtis (1901), Harris & Eberle (2001), Powers (1969), Wujek et al. (1980)
    NE: Hoagland et al. (1982)
    OK: Pfiester et al. (1979), Troeger (1983), Troeger & Menzel (1986)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema affine f. major Grun.
            Gomphonema affinis ?
Gomphonema affine f. major Grun. = Gomphonema affine Kütz.
    KS: Curtis (1901)
Gomphonema affine var. insigne (Greg.) Andr.
    OK: Pfiester et al. (1979)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema insigne Greg.
Gomphonema affinis ? = Gomphonema affine Kütz.?
    KS: Curtis (1901) [these names were listed separately in the same list by Curtis (1901:69)]
Gomphonema angustatum (Kütz.) Rab.
    KS: Curtis (1901), Harris & Eberle (2001), Powers (1969), Wujek et al. (1980)
    MO: Pamperl (1980)
    NE: Elmore (1921)
    OK: Koch & Risser (1974), Pfiester et al. (1979), Wilhm et al. (1977), Wilhm et al. (1978)
    Plains States: Patrick & Reimer (1975)
Gomphonema angustatum var. intermedia Grun.
    KS: Curtis (1901), Powers (1969)
    MO: Pamperl (1980)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema angustatum var. obesa Lauby
Gomphonema angustatum var. obesa Lauby = Gomphonema angustatum var. intermedia Grun.
    KS: Powers (1969)
Gomphonema angustatum var. obtusatum (Kütz.) Grun.
    KS: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema obtusatum (Kütz.) Grun.
Gomphonema angustatum var. productum Grun.
    KS: Curtis (1901)
    OK: Troeger (1983)
    Plains States: Patrick & Reimer (1975)
Gomphonema angustatum var. sarcophagus (Greg.) Grun.
    OK: Troeger (1983)
        Synonyms:
            Gomphonema sarcophagus Greg.
Gomphonema apicatum Ehr.
    OK: Troeger (1978)
Gomphonema apuncta Wall.
    MO: Pamperl (1980)
Gomphonema augar Ehr.
    NE: Elmore (1921)
    OK: Pfiester et al. (1979), Troeger (1978)
    Plains States: Patrick & Reimer (1975)
Gomphonema auritum A. Braun = Gomphonema gracile Ehr. emend V.H.
    KS: Curtis (1901)
Gomphonema brasiliense Grun.
    Plains States: Patrick & Reimer (1975)
Gomphonema capitatum Ehr. = Gomphonema truncatum var. capitatum (Ehr.) Patr.
    CO: Cockerell (1888)
    KS: Curtis (1901)
    NE: Webber (1890) [also as Gomphonema constrictum var. capitatum]
Gomphonema clavatum Ehr. = Gomphonema truncatum var. clavatum (Ehr.) comb. nov.?
    KS: Curtis (1901)
    NE: Webber (1889, 1890)
    OK: Ehrenberg (1856)
Gomphonema clevei Fricke
    KS: Powers (1969)
    MO: Pamperl (1980)
    NE: Patrick & Reimer (1975)
    OK: Pfiester et al. (1979)
Gomphonema commutatum Grun. = Gomphonema subclavatum var. commutatum (Grun.) A. Mayer
    KS: Curtis (1901)
Gomphonema commutatum var. subramosum = Gomphonema subclavatum var.?
    KS: Curtis (1901) [unverified (Patrick and Reimer 1975:151)]
Gomphonema consector Hohn & Hellerm.
    KS: Wujek et al. (1980)
    OK: Pfiester et al. (1979)
Gomphonema constrictum Ehr. = Gomphonema truncatum Ehr.
    KS: Curtis (1901), Wolle (1889)
    NE: Andersen & Walker (1920), Elmore (1921), Webber (1889, 1890)
    OK: Koch & Risser (1974), Leake (1945)
Gomphonema dichotomum Kütz.
    MO: Pamperl (1980)
    NE: Webber (1890) [also as Gomphonema gracile var. dichotomum]
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema intricatum var. pumila Grun.
Gomphonema eriense Grun. = Gomphoneis eriense (Grun.) Skv. & Meyer
    NE: Elmore (1921)
Gomphonema exiguum Kütz. = Gomphoneis exigua (Kütz.) Medlin
    NE: Elmore (1921)
Gomphonema gracile Ehr. emend V.H.
    KS: Curtis (1901), Williams et al. (1979), Wujek et al. (1980)
    MO: Pamperl (1980)
    NE: Andersen & Walker (1920), Elmore (1921), Hoagland et al. (1982)
    OK: Ehrenberg (1856), Pfiester & Terry (1978), Pfiester et al. (1979), Troeger (1978, 1983)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema auritum A. Braun
            Gomphonema gracile f. parva Grun.
            Gomphonema gracile f. naviculaoides (W. Sm.) Grun.
Gomphonema gracile f. parva Grun. = Gomphonema gracile Ehr. emend V.H.
    KS: Curtis (1901)
Gomphonema gracile var. lanceolata (Kütz.) Cl. = Gomphonema grunowii Patr.
    OK: Koch & Risser (1974)
Gomphonema gracile var. longicolle Ehr.
        Synonyms:
            Gomphonema longicolle Ehr.
Gomphonema gracile var. naviculoides (W. Sm.) Grun. = Gomphonema gracile Ehr. emend V.H.
    KS: Powers (1969)
Gomphonema grunowii Patr.
    KS: Wujek et al. (1980)
    OK: Pfiester et al. (1979)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema gracile var. lanceolata (Kütz.) Cl.
            Gomphonema lanceolatum Ehr.
Gomphonema helveticum Brun
    OK: Troeger (1978, 1983)
Gomphonema herculeanum Ehr. = Gomphoneis herculeana (Ehr.) Cl.
    NE: Andersen & Walker (1920), Ehrenberg (1856), Elmore (1921)
Gomphonema insigne Greg. = Gomphonema affine var. insigne (Greg.) Andr.
    KS: Curtis (1901)
Gomphonema intricatum Kütz.
    KS: Wujek (1965)
    NE: Elmore (1921), Hoagland et al. (1982), Roemer et al. (1984), Rosowski et al. (1986)
    Plains States: Patrick & Reimer (1975)
Gomphonema intricatum var. pumila Grun. = Gomphonema dichotomum Kütz.
    KS: Curtis (1901)
    OK: Koch & Risser (1974)
Gomphonema intricatum var. vibrio (Ehr.) Cl.
    KS: Wujek et al. (1980)
    MO: Pamperl (1980)
    Plains States: Patrick & Reimer (1975)
Gomphonema lagenula Kütz. = Gomphonema parvulum (Kütz.) Kütz.
    KS: Curtis (1901)
Gomphonema lanceolatum Ehr. = Gomphonema grunowii Patr.
    NE: Elmore (1921)
Gomphonema longiceps var. subclavatum Grun. = Gomphonema subclavatum (Grun.) Grun.
    OK: Koch & Risser (1974), Troeger (1978)
Gomphonema longiceps var. subclavatum f. gracilis Hust. = Gomphonema subclavatum 
    (Grun.) Grun.
    OK: Pfiester & Terry (1978)
Gomphonema longicolle Ehr. = Gomphonema gracile var. longicolle Ehr.
    NE: Ehrenberg (1856)
Gomphonema mexicanum Grun. = Gomphonema subclavatum var. mexicanum (Grun.) Patr.
    KS: Curtis (1901)
Gomphonema montanum Schum.
    KS: Elmore (1921)
    NE: Andersen & Walker (1920), Elmore (1921)
    OK: Koch (1975)
    Plains States: Patrick & Reimer (1975) [G. montanum sensu Elmore (from KS & NE) is not 
               G. montanum Schum. (Patrick and Reimer 1975:122)]
Gomphonema montanum var. subclavatum Grun. = Gomphonema subclavatum (Grun.) Grun.
    KS: Curtis (1901)
    OK: Koch & Risser (1974)
Gomphonema obtusatum (Kütz.) Grun. = Gomphonema angustatum var. obtusatum (Kütz.) Grun.
    KS: Curtis (1901)
Gomphonema obtusum Ehr. = nom. nud.?
    NE: Ehrenberg (1856)
    OK: Ehrenberg (1856)
Gomphonema olivaceum (Lyngb.) Kütz.
    KS: Curtis (1901), Elmore (1921), Harris & Eberle (2001), McFarland et al. (1964), Powers (1969), 
          Wenke & Eberle (1986), Williams et al. (1979), WPSS (1961-1963), Wujek et al. (1980)
    MO: Pamperl (1980)
    NE: Elmore (1921), Hoagland et al. (1982), F.A. Morris et al. (1979), Roemer et al. (1984), WPSS 
          (1961-1963)
    OK: Cooper & Wilhm (1975), Koch (1975), Leake (1945), Pfiester et al. (1979), Seyfer & Wilhm (1977),
           Troeger (1983), Wilhm et al. (1977), Wilhm et al. (1978), Williams (1962, 1964), 
           WPSS (1961-1963, 1966)
    Plains States: Patrick & Reimer (1975)
Gomphonema olivaceum var. calcarea (Cl.) Cl.
    KS: Harris & Eberle (2001)
    OK: Troeger (1978)
Gomphonema olivaceum var. vulgaris = ?
    KS: Curtis (1901) [misidentified (Patrick and Reimer 1975:152)]
Gomphonema parvulum (Kütz.) Kütz.
    KS: Curtis (1901), Harris & Eberle (2001), Powers (1969), Wenke & Eberle (1986), Wujek et al. (1980)
    MO: Pamperl (1980)
    NE: Andersen & Walker (1920), Elmore (1921), Hoagland et al. (1982), Roemer et al. (1984), 
          Rosowski et al. (1986)
    OK: Hern et al. (1979), Koch (1975), Pfiester et al. (1979), Seyfer & Wilhm (1977), Troeger (1978, 1983),
           Troeger & Menzel (1986), Wilhm et al. (1977), Wilhm et al. (1978)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema lagenula Kütz.
            Gomphonema parvulum var. microceps (Kütz.) Cl.
            Gomphonema parvulum var. subcapitata Grun.
Gomphonema parvulum var. microceps (Kütz.) Cl. = Gomphonema parvulum var. micropus Cl.? 
      [the latter = Gomphonema parvulum (Kütz.) Kütz.]
    OK: Koch & Risser (1974)
Gomphonema parvulum var. subcapitata Grun. = Gomphonema parvulum (Kütz.) Kütz.
    KS: Curtis (1901)
Gomphonema sarcophagus Greg. = Gomphonema anugustatum var. sarcophagus (Greg.) Grun.
    KS: Curtis (1901)
Gomphonema semiapterum Grun.
    KS: Patrick & Reimer (1975) [only as fossil (Hanna 1932)]
Gomphonema simus Hohn & Hellerm.
    OK: Pfiester et al. (1979)
Gomphonema sphaerophorum Ehr.
    KS: Wujek (1965)
    OK: Pfiester et al. (1979)
    Plains States: Patrick & Reimer (1975)
Gomphonema subclavatum (Grun.) Grun.
    KS: Powers (1969), Wenke & Eberle (1986)
    MO: Pamperl (1980)
    NE: Hoagland et al. (1982)
    OK: Pfiester et al. (1979), Seyfer & Wilhm (1977)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema longiceps var. subclavatum Grun.
            Gomphonema longiceps var. subclavatum f. gracilis (Kütz.) Cl.
            Gomphonema montanum var. subclavatum Grun.
Gomphonema subclavatum var. commutatum (Grun.) A. Mayer
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema commutatum Grun.
Gomphonema subclavatum var. mexicanum (Grun.) Patr.
    KS: Wujek et al. (1980)
    MO: Pamperl (1980)
    NE: Hoagland et al. (1982)
    OK: Pfiester et al. (1979)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema mexicanum Grun.
Gomphonema subtile Ehr.
    KS: Wujek (1965)
Gomphonema tenellum Kütz.
    MO: Pamperl (1980)
    OK: Pfiester et al. (1979)
Gomphonema tergestinum (Grun.) Fricke
    OK: Pfiester et al. (1979)
Gomphonema truncatum Ehr.
    KS: Wenke & Eberle (1986), Wujek et al. (1980)
    OK: Seyfer & Wilhm (1977)
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema constrictum Ehr.
Gomphonema truncatum var. capitatum (Ehr.) Patr.
    Plains States: Patrick & Reimer (1975)
        Synonyms:
            Gomphonema capitatum Ehr.
Gomphonema truncatum var. clavatum (Ehr.) comb. nov.?
      Reported as Gomphonema clavatum Ehr., Patrick and Reimer (1975:151) equated this taxon with 
      Gomphonema constrictum var. clavatum (Ehr.) Patr., but G. constrictum Ehr. emend Kütz. is properly 
      named G. truncatum Ehr. (Patrick and Reimer 1975:119), which produces the name given here.
        Synonyms:
            Gomphonema clavatum Ehr.
Gomphonema validum Cl.
    NE: Elmore (1921)
Gomphonema ventricosum Greg.
    KS: Curtis (1901)
Gyrosigma acuminatum (Kütz.) Rab.
    KS: Harris & Eberle (2001), Reinke (1979a), Wenke & Eberle (1986), Wujek et al. (1980)
    MO: Pamperl (1980)
    NE: Elmore (1921), Hoagland et al. (1982)
    OK: Pfiester et al. (1979)
    Plains States: Patrick & Reimer (1966)
        Synonyms:
            Gyrosigma kuetzingii (Grun.) Cl.
            Gyrosigma spencerii (Quek.) Griff. & Henfr.
            Pleurosigma gracilentum Rab.
            Pleurosigma kuetzingii Grun.
            Pleurosigma spencerii (Quek.) W. Sm.
Gyrosigma attenuatum (Kütz.) Rab.
    NE: Elmore (1921)
    Plains States: Patrick & Reimer (1966)
Gyrosigma attenuatum var. scalprum (Gaillon) Ralfs
        Synonyms:
            Navicula scalprum Gaillon
Gyrosigma delicatulum (W. Sm.) Elm. = Pleurosigma delicatulum W. Sm.
    NE: Elmore (1921)
Gyrosigma euhippus Sterr. & Ross
        Synonyms:
            Pleurosigma hippocampus Ehr.
Gyrosigma eximium (Thw.) Boyer emend Sterr.
    KS: ?Patrick & Reimer (1966)
    OK: Pfiester et al. (1979)
        Synonyms:
            Pleurosigma eximium (Thw.) Cl. & Grun.
Gyrosigma fasciola (Ehr.) Griff. & Henfr.
    KS: Powers (1969)
    OK: ?Hern et al. (1979)
Gyrosigma kuetzingii (Grun.) Cl. = Gyrosigma acuminatum (Kütz.) Rab.
    CO: WPSS (1961-1963)
    KS: WPSS (1961-1963)
    NE: Elmore (1921)
    OK: WPSS (1961-1963)
Gyrosigma macrum (W. Sm.) Griff. & Henfr.
    CO: ?M.K. Morris et al. (1979b)
Gyrosigma obscurum (W. Sm.) Griff. & Henfr. = Pleurosigma obscurum W. Sm. emend Sterr.
    KS: Wenke & Eberle (1985)
Gyrosigma obtusatum (Sulliv. & Wormley) Boyer
        Synonyms:
            Gyrosigma scalproides (Rab.) Cl.
Gyrosigma scalproides (Rab.) Cl. = Gyrosigma obtusatum (Sulliv. & Wormley) Boyer
    KS: Powers (1969)
    NE: Elmore (1921)
    Plains States: Patrick & Reimer (1966)
Gyrosigma sciotense (Sulliv. & Wormley) Cl.
    Plains States: ?Patrick & Reimer (1966)
        Synonyms:
            Pleurosigma sciotense Sulliv. & Wormley
Gyrosigma spencerii (Quek.) Griff. & Henfr. = Gyrosigma acuminatum (Kütz.) Rab.
    KS: Elmore (1921), Wujek et al. (1980)
    MO: Pamperl (1980)
    NE: Elmore (1921), Hoagland et al. (1982)
    OK: Koch & Risser (1974), Seyfer & Wilhm (1977), Troeger (1978), Wilhm et al. (1977), Wilhm et 
          al. (1978)
    Plains States: Patrick & Reimer (1966)
Gyrosigma spencerii var. curvula (Grun.) Reim.? [status needs to be reassessed 
    (Sterrenburg 1995:476-477)]
    KS: Czarnecki & Reinke (1981), Wenke & Eberle (1986)
    OK: Koch (1975)

Hantzschia amphioxys (Ehr.) Grun.
    CO: WPSS (1961-1963)
    KS: Harris & Eberle (2001), Wenke & Eberle (1986), Williams et al. (1979), WPSS (1961-1963)
    MO: M.K. Morris et al. (1979a)
    NE: WPSS (1961-1963)
    OK: Koch & Risser (1974), Pfiester et al. (1979), Troeger (1978), Wilhm et al. (1977), Wilhm et al. (1978),
WPSS (1961-1963)
        Synonyms:
            Eunotia amphioxys Ehr.
            Homoeocladia amphioxys (Ehr.) Kuntze
            Nitzschia amphioxys (Ehr.) W. Sm.
Hantzschia amphioxys f. capitata O. Müll.
    KS: Wenke & Eberle (1986), Wujek et al. (1980)
    NE: F.A. Morris et al. (1979)
    OK: Troeger (1983)
Hantzschia amphioxys var. vivax Grun.
    KS: Wenke & Eberle (1986)
    NE: Webber (1890) [and parenthetically as Nitzschia vivax Hantzsch]
        Synonyms:
            Nitzschia amphioxys var. vivax (Grun.) ?
Hantzschia spectabilis (Ehr.) Hust.
        Synonyms:
            Synedra spectabilis Ehr.
            Homoeocladia spectabilis (Ehr.) Kuntze
            Nitzschia spectabilis (Ehr.) Ralfs
Hantzschia virgata (Roper) Grun.
    OK: Wilhm et al. (1977), Willson & Forest (1957)
        Synonyms:
            Homoeocladia virgata (Roper) Kuntze
Homoeocladia acicularis (Kütz.) Kuntze = Nitzschia acicularis (Kütz.) W. Sm.
    KS: Elmore (1921)
    NE: Elmore (1921)
Homoeocladia amphibia (Grun.) Kuntze = Nitzschia amphibia Grun.
    NE: Andersen & Walker (1920), Elmore (1921)
Homoeocladia amphioxys (Ehr.) Kuntze = Hantzsachia amphioxys (Ehr.) Grun.
    NE: Andersen & Walker (1920), Elmore (1921)
Homoeocladia angustata (W. Sm.) Kuntze = Nitzschia angustata (W. Sm.) Grun. =
    Tryblionella angustata W. Sm.
    NE: Elmore (1921)
Homoeocladia apiculata (Greg.) Kuntze = Tryblionella apiculata Greg.
    NE: Elmore (1921)
Homoeocladia arcus (Buhln.) Kuntze = Nitzschia obtusa W. Sm.
    NE: Elmore (1921)
Homoeocladia brebissonii (W. Sm.) Kuntze = Nitzschia brebissonii W. Sm.
    NE: Andersen & Walker (1920), Elmore (1921)
Homoeocladia commutata (Grun.) Kuntze = Nitzschia commutata Grun.
    NE: Elmore (1921)
Homoeocladia dissipata (Kütz.) Kuntze = Nitzschia dissipata (Kütz.) Grun.
    NE: Elmore (1921)
Homoeocladia dubia (W. Sm.) Elm. = Nitzschia dubia W. Sm.
    NE: Elmore (1921)
Homoeocladia fasciculata (Grun.) Kuntze = Nitzschia fasciculata (Grun.) Grun.
    NE: Elmore (1921)
Homoeocladia filiformis W. Sm. = Nitzschia filiformis (W. Sm.) V.H.
    NE: Elmore (1921)
Homoeocladia frustulum (Kütz.) Kuntze = Nitzschia frustulum (Kütz.) Grun.
    NE: Elmore (1921)
Homoeocladia hungarica (Grun.) Kuntze = Tryblionella hungarica (Grun.) D. Mann
    NE: Elmore (1921)
Homoeocladia intermedia (Hantz.) Kuntze = Nitzschia intermedia Hantz.
    NE: Elmore (1921)
Homoeocladia lanceolata (W. Sm.) Kuntze = Nitzschia lanceolata W. Sm.
    KS: Elmore (1921)
    NE: Elmore (1921)
Homoeocladia linearis (W. Sm.) Kuntze = Nitzschia linearis W. Sm.
    NE: Elmore (1921)
Homoeocladia obtusa (Lyngb.) Elm. = Nitzschia denticula Grun.
    NE: Elmore (1921)
Homoeocladia palea (Kütz.) Kuntze = Nitzschia palea (Kütz.) W. Sm.
    NE: Andersen & Walker (1920), Elmore (1921)
Homoeocladia paxillifer (O. Müll.) Elm. = Bacillaria paradoxa Gmelin
    KS: Elmore (1921)
    NE: Elmore (1921)
Homoeocladia punctata (W. Sm.) Kuntze = Tryblionella punctata W. Sm.
    NE: Elmore (1921)
Homoeocladia sigma (Kütz.) Kuntze = Nitzschia sigma (Kütz.) W. Sm.
    NE: Elmore (1921)
    OK: Leake (1945)
Homoeocladia sigmoidea (Nitz.) Elm. = Nitzschia sigmoidea (Nitz.) W. Sm.
    KS: Curtis (1901)
    NE: Elmore (1921)
Homoeocladia spectabilis (Ehr.) Kuntze = Hantzschia spectabilis (Ehr.) Hust.
    NE: Elmore (1921)
Homoeocladia subtilis (Grun.) Kuntze = Nitzschia subtilis (?Kütz.) Grun.
    NE: Elmore (1921)
Homoeocladia tryblionella (Hantz.) Kuntze = Nitzschia tryblionella Hantz. = Tryblionella
    gracilis W. Sm.?
    NE: Elmore (1921)
    OK: Leake (1945)
Homoeocladia umbonata (Ehr.) Kuntze = Nitzschia thermalis (Ehr.) Auersw.
    NE: Elmore (1921)
Homoeocladia vermicularis (Kütz.) Kuntze = Nitzschia vermicularis (Kütz.) Hantz.
    KS: Elmore (1921)
    NE: Elmore (1921)
Homoeocladia virgata (Roper) Kuntze = Hantzschia virgata (Roper) Grun.
    NE: Elmore (1921)
Homoeocladia vitrea (Norm.) Kuntze = Nitzschia vitrea Norm.
    NE: Elmore (1921)

Karayevia clevei (Grun.) Round & Bukht.
        Synonyms:
            Achnanthes clevei Grun.

Lemnicola hungarica (Grun.) Round & Basson
        Synonyms:
            Achnanthes hungarica (Grun.) Grun.
Luticola cohnii (Hilse) D. Mann
        Synonyms:
            Navicula mutica var. cohnii (Hilse) Grun.
Luticola goeppertiana (Bleisch ex Rab.) D. Mann
        Synonyms:
            Navicula mutica var. goeppertiana (Bleisch ex Rab.) Grun.
Luticola mutica (Kütz.) D. Mann
        Synonyms:
            Navicula mutica Kütz.
Luticola stigma (Patr.) comb. nov.?
        Synonyms:
            Navicula mutica var. stigma Patr.
Luticola tropica (Hust.) comb. nov.?
        Synonyms:
            Navicula mutica var. tropica Hust.
Luticola undulata (Hilse) D. Mann
        Synonyms:
            Navicula mutica var. undulata (Hilse) Grun.
Luticola ventricosa (Kütz.) D. Mann
        Synonyms:
            Navicula mutica var. ventricosa (Kütz.) Cl.

Martyana martyi (Herib.) Round
    KS: Harris & Eberle (2001)
Mastogloia braunii Grun.
    KS: Harris & Eberle (2001)
Mastogloia danseii Thw. ex W. Sm.
    KS: Harris & Eberle (2001)
        Synonyms:
            Mastogloia elliptica var. danseii (Thw. ex W. Sm.) Cl.
            Mastogloia grevillei W. Sm.
Mastogloia elliptica (Ag.) Cl.
    NE: Elmore (1921)
    OK: Kennedy & Pfiester (1984)
Mastogloia elliptica var. danseii (Thw. ex W. Sm.) Cl. = Mastogloia danseii Thw. ex W. Sm. 
      [see Stoermer (1967)]
    KS: Czarnecki & Reinke (1981), Wenke & Eberle (1986)
Mastogloia grevillei W. Sm. = Mastogloia danseii Thw. ex W. Sm.
      [see Stoermer (1967); some justification could be made for recognizing M. danseii f. grevillei because the 
      form danseii occurs in waters of high mineral content and the form grevillei occurs in waters with low total 
      disolved solids]
    NE: Elmore (1921), Patrick & Reimer (1966)
    OK: Kennedy & Pfiester (1984)
Mastogloia pumila (Grun.) Cl.
    KS: Harris & Eberle (2001), Wujek et al. (1980)
Mastogloia smithii Thw. ex W. Sm.
    KS: Czarnecki & Reinke (1981)
    Plains States: Patrick & Reimer (1966)
Mastogloia smithii var. amphicephala Grun.
    KS: Patrick & Reimer (1966)
    OK: Pfiester et al. (1979)
Mastogloia smithii var. lacustris Grun.
    KS: Curtis (1901), Czarnecki & Reinke (1981), Patrick & Reimer (1966)


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