DiatomBase

Cocconeis gibberula var. gibberula (Grunow in Cleve & Grunow) Hustedt, 1909 accepted as Achnanthes gibberula var. gibberula Grunow in Cleve & Grunow, 1880 (new combination reference)
Cymbella ventricosa var. minuta Hustedt, 1909 (original description)
Gomphonema erinaceum (Brébisson & Arnott) Hustedt, 1909 accepted as Peronia erinacea var. erinacea Brébisson & Arnott ex Kitton, 1868 (new combination reference)
Navicula anceps var. amphicephala (Kützing) Hustedt, 1909 (new combination reference)
Navicula anceps var. elongata (Cleve) Hustedt, 1909 (new combination reference)
Navicula anceps var. gracilis (Ehrenberg) Hustedt, 1909 (new combination reference)
Navicula anceps var. linearis (Ehrenberg) Hustedt, 1909 (new combination reference)
Navicula brandeli (Cleve) Hustedt, 1909 accepted as Pinnularia brandelii var. brandelii Cleve, 1891 (new combination reference)
Navicula legumen (Ehrenberg) F.W.Mills, 1934 accepted as Stauroptera legumen Ehrenberg, 1843 (new combination reference)
Navicula legumen f. parva (Grunow) Hustedt, 1909 (new combination reference)
Navicula nodosa f. capitata (Cleve) Hustedt, 1909 (new combination reference)
Navicula nodosa f. genuina (Cleve) Hustedt, 1909 (new combination reference)
Navicula obtusa (Lagerstedt) Hustedt, 1909 accepted as Stauroneis obtusa f. obtusa Lagerstedt, 1873 (new combination reference)
Navicula parvula var. parvula (Grunow in Cleve & Möller) Hustedt, 1909 accepted as Pleurostaurum parvulum var. parvulum Grunow in Cleve & Möller, 1878 (new combination reference)
Navicula parvula var. producta (Grunow) Hustedt, 1909 accepted as Stauroneis producta Grunow, 1880 (new combination reference)
Navicula parvula var. prominula (Grunow Ms. in Cleve) Hustedt, 1909 (new combination reference)
Navicula phoenicenteron var. amphilepta (Ehrenberg) Hustedt, 1909 accepted as Stauroneis amphilepta var. amphilepta Ehrenberg, 1843 (new combination reference)
Navicula phoenicenteron var. genuina Hustedt (new combination reference)
Navicula smithii (Grunow) Hustedt, 1909 (new combination reference)
Navicula undulata f. undulata (Gregory) Hustedt, 1909 accepted as Pinnularia undulata f. undulata Gregory, 1854 (new combination reference)
Navicula viridis var. dispar (Schumann) Hustedt, 1909 accepted as Navicula dispar Schumann, 1862 (new combination reference)
Nitzschia communis var. minuta Bleisch. accepted as Nitzschia minuta f. minuta Bleisch in Rabenhorst, 1860 (new combination reference)
Nitzschia communis var. perpusilla Rabenhorst accepted as Nitzschia perpusilla f. perpusilla Rabenhorst, 1861 (new combination reference)
Nitzschia linearis var. vitrea (Norman) Hustedt, 1909 accepted as Nitzschia vitrea f. vitrea Norman, 1861 (new combination reference)
Nitzschia punctata var. constricta (Grunow) Van Heurck, 1909 accepted as Tryblionella punctata var. constricta Grunow, 1862 (new combination reference)
Nitzschia punctata var. curta Grunow accepted as Tryblionella punctata var. curta Grunow, 1862 (new combination reference)
Stenopterobia intermedia var. densestriata Hustedt, 1909 (original description)