Gomphonema acuminatum var. cryptoacuminatum N.Abarca & R.Jahn in Abarca et al. 2020 (original description)
Gomphonema acuminatum var. longiceps (Ehrenb.) N.Abarca & R.Jahn (new combination reference)
Gomphonema acuminatum var. scardicum (Mitić- Kopanja, C.E.Wetzel, Ector & Levkov) N.Abarca & R.Jahn, (new combination reference)
Gomphonema angusticephalum E. Reichardt & H. Lange-Bertalot apud E. Reichardt, 1999 (additional source)
Gomphonema capitatum Ehrenberg, 1838 (additional source)
Gomphonema kociolekii R.Jahn & N.Abarca in Abarca et al., 2020 (additional source)
Gomphonema kociolekii R.Jahn & N.Abarca (new combination reference)
Gomphonema mexicanum Grunow, 1880 (additional source)
Gomphonema neotropicum N.Abarca & D.Mora in Abarca et al., 2020 (original description)
Gomphonema neotropicum N.Abarca & D.Mora (original description)
Gomphonema scardicum D.Mitic-Kopanja, C.E.Wetzel, L.Ector & Z.Levkov, 2014 (new combination reference)
Gomphonema subclavatum Grunow in Van Heurck 1880 (additional source)
Gomphonema subclavatum var. pomeranicum N.Abarca & R.Jahn (original description)
Gomphonema subclavatum var. pomeranicum N.Abarca & R.Jahn in Abarca et al. 2020 (original description)
Gomphonema truncatum Ehrenberg, 1832 (additional source)
Lectotype [icon!] Grunow in Van Heurck, pl. 24, Figure 3. 1880., identified as
Gomphonema mexicanum Grunow, 1880
Lectotype “Zeichnung links unten ?Berol. 1827' auf Zeichenblatt 693”, identified as
Gomphonema truncatum Ehrenberg, 1832
Holotype B 40 0041753, identified as
Gomphonema neotropicum N.Abarca & D.Mora in Abarca et al., 2020
Holotype B 40 0041753, identified as
Gomphonema neotropicum N.Abarca & D.Mora
Holotype B 40 0042152, identified as
Gomphonema acuminatum var. cryptoacuminatum N.Abarca & R.Jahn in Abarca et al. 2020
Holotype B 40 0042194, identified as
Gomphonema subclavatum var. pomeranicum N.Abarca & R.Jahn
Holotype B 40 0042194, identified as
Gomphonema subclavatum var. pomeranicum N.Abarca & R.Jahn in Abarca et al. 2020
Holotype B S1882-T01, identified as
Gomphonema angusticephalum E. Reichardt & H. Lange-Bertalot apud E. Reichardt, 1999
Lectotype BHUPM 430207–5v., identified as
Gomphonema longiceps Ehrenberg, 1854
Lectotype BHUPM Trockenpräparat C 3, identified as
Gomphonema capitatum Ehrenberg, 1838