DiatomBase

Achnanthes clevei var. rostrata Hustedt, 1930 (original description)
Achnanthes conspicua var. brevistriata Hustedt, 1930 (original description)
Achnanthes dispar var. angulata Hustedt, 1930 (original description)
Achnanthes exigua var. constricta (Torka) Hustedt, 1930 accepted as Cocconeis exigua var. constricta Torka, 1909 (new combination reference)
Achnanthes grimmei var. elliptica Krasske in Hustedt, 1930 (original description)
Achnanthes hauckiana var. elliptica Schulz ex Hustedt, 1930 (original description)
Achnanthes hauckiana var. rostrata Schulz ex Hustedt, 1930 (original description)
Achnanthes kolbei var. kolbei Hustedt, 1930 (original description)
Achnanthes lacunarum var. lacunarum Hustedt, 1930 (original description)
Achnanthes lanceolata var. rostrata (Østrup) Hustedt, 1930 accepted as Achnanthes rostrata Oestrup, 1902 (new combination reference)
Achnanthes oestrupii var. ostrupii (Cleve-Euler) Hustedt, 1930 accepted as Achnanthes lanceolata var. oestrupii A.Cleve, 1922 accepted as Skabitschewskia oestrupii (Cleve-Euler) Kulikovskiy & Lange-Bertalot, 2015 (new combination reference)
Achnanthes ploenensis Hustedt, 1930 represented as Karayevia ploenensis (Hustedt) Bukhtiyarova, 1999 (original description)
Achnanthes ploenensis var. ploenensis Hustedt represented as Karayevia ploenensis (Hustedt) Bukhtiyarova, 1999 (original description)
Amphiprora costata Hustedt, 1930 accepted as Entomoneis costata (Hustedt) Reimer, 1975 (original description)
Amphora coffeaeformis f. acutiuscula (Kützing) Hustedt, 1930 accepted as Amphora acutiuscula var. acutiuscula Kützing, 1844 (new combination reference)
Amphora delicatissima f. delicatissima Krasske in Hustedt, 1930 (original description)
Amphora holsatica f. holsatica Hustedt, 1930 (original description)
Amphora normanii var. undulata Krasske, 1930 (original description)
Amphora ovalis f. gracilis (Ehrenberg) Hustedt, 1930 accepted as Amphora gracilis f. gracilis Ehrenberg, 1843 (new combination reference)
Anomoeoneis serians f. brachysira (Brébisson in Rabenhorst) Hustedt, 1930 accepted as Navicula brachysira Brébisson ex Rabenhorst, 1853 (new combination reference)
Anomoeoneis serians f. thermalis (Grunow) Hustedt, 1930 accepted as Navicula serians var. thermalis Grunow, 1880 (new combination reference)
Anomoeoneis styriaca var. styriaca (Grunow in Van Heurck) Hustedt, 1930 accepted as Navicula styriaca Grunow, 1880 (new combination reference)
Anomoeoneis styriaca var. ventricosa Hustedt accepted as Frustulia styriaca var. ventricosa Hustedt, 1922 (new combination reference)
Biddulphia tridentata ‘Weisse' according to Hustedt, 1930 (taxonomy source)
Caloneis bacillum var. lancettula (Schulz) Hustedt, 1930 accepted as Caloneis aemula var. lancettula Schultz, 1926 (new combination reference)
Caloneis ladogensis var. densestriata Hustedt, 1930 (original description)
Caloneis schumanniana var. lancettula Hustedt, 1930 (original description)
Caloneis silicula f. curta Grun accepted as Navicula limosa var. curta Grunow in Van Heurck, 1880 (new combination reference)
Caloneis silicula var. peisonis Hustedt, 1930 (original description)
Caloneis zachariasi var. zachariasi (Reichelt) Hustedt, 1930 accepted as Navicula zachariasi Reichelt, 1903 (new combination reference)
Campylodiscus clypeus f. bicostata (W. Smith in Roper) Hustedt, 1930 accepted as Campylodiscus bicostatus var. bicostatus W. Smith in Roper, 1854 (new combination reference)
Campylodiscus noricus f. tenera (Mayer) Hustedt, 1930 accepted as Campylodiscus tenera Mayer, 1929 (new combination reference)
Cymbella sinuata f. ovata (Hustedt) Hustedt, 1930 accepted as Cymbella sinuata var. ovata Hustedt, 1922 (new combination reference)
Denticula tenuis var. crassula (Nägeli) West & West, 1901 accepted as Denticula crassula Naegeli ex Kützing, 1849 (new combination reference)
Diatoma vulgare var. ovalis (Fricke) Hustedt, 1930 accepted as Diatoma ovalis Fricke in Schmidt et al., 1906 (new combination reference)
Diatomella balfouriana var. constricta Krasske in Hustedt, 1930 (original description)
Diploneis pseudovalis Hustedt, 1930 (original description)
Eucocconeis flexella var. alpestris Brun accepted as Achnanthes flexella var. alpestris Brun, 1880 (new combination reference)
Eunotia arcus var. fallax Hustedt, 1930 (original description)
Eunotia exigua var. bidens Hustedt, 1930 (original description)
Eunotia exigua var. compacta Hustedt, 1930 (original description)
Eunotia meisteri var. bidens Hustedt, 1930 (original description)
Eunotia meisteri var. meisteri Hustedt, 1930 (original description)
Eunotia monodon f. bidens Hustedt, 1930 (original description)
Eunotia monodon f. major (W. Smith) Hustedt, 1930 accepted as Himantidium majus var. majus W. Smith, 1856 (new combination reference)
Eunotia pectinalis f. impressa (Ehrenberg) Hustedt, 1930 accepted as Eunotia impressa Ehrenberg, 1854 (new combination reference)
Eunotia trinacria var. undulata Hustedt, 1930 (original description)
Eunotia valida Hustedt, 1930 (original description)
Fragilaria brevistriata f. inflata (Pantocsek) Hustedt, 1930 accepted as Fragilaria inflata Pantocsek, 1902 (new combination reference)
Fragilaria brevistriata var. trigibba (Pantocsek) Hustedt, 1930 accepted as Fragilaria trigibba Pantocsek, 1902 (new combination reference)
Fragilaria undata var. quadrata Hustedt, 1930 (original description)
Frustulia rhomboides f. capitata (Mayer) Hustedt, 1930 accepted as Frustulia saxonica var. capitata A.Mayer, 1917 (new combination reference)
Frustulia rhomboides f. undulata Hustedt, 1930 (original description)
Gomphocymbella ancyli (Cleve) Hustedt, 1930 † accepted as Cymbella ancyli Cleve, 1902 † (new combination reference)
Gomphonema angustatum var. linearis Hustedt, 1930 (original description)
Gomphonema helveticum var. tenuis (Fricke) Hustedt, 1930 accepted as Gomphonema tenue Fricke, 1902 (new combination reference)
Gomphonema longiceps f. gracilis Hustedt, 1930 (original description)
Gomphonema longiceps f. montana (Schumann) Hustedt, 1930 accepted as Gomphonema montanum var. montanum Schumann, 1867 (new combination reference)
Gomphonema longiceps f. suecica Grunow accepted as Gomphonema montanum var. suecica Grunow in Van Heurck, 1880 (new combination reference)
Gomphonema longiceps var. subclavata Grunow ex Cleve & Moller, 1879 (new combination reference)
Gomphonema olivaceum var. minutissima Hustedt, 1930 (original description)
Gyrosigma peisonis (Grunow) Hustedt, 1930 accepted as Pleurosigma peisonis var. peisonis Grunow, 1860 (new combination reference)
Hantzschia virgata var. gracilis Hustedt, 1930 (original description)
Melosira granulata f. curvata Hustedt, 1930 (original description)
Melosira granulata f. muzzanensis (Meister) Hustedt, 1930 accepted as Melosira muzzanensis Meister, 1912 (new combination reference)
Melosira granulata f. spiralis Hustedt, 1927 (original description)
Navicula bacillum var. rostrata A.Mayer accepted as Navicula pseudobacillum var. rostrata Mayer, 1917 (new combination reference)
Navicula bicontracta sensu Hustedt, 1930 (original description)
Navicula contempta Krasske, 1929 (original description)
Navicula contenta f. biceps (Arnott Ms., Grunow in Van Heurck) Hustedt, 1930 (new combination reference)
Navicula contenta f. elliptica Krasske in Hustedt, 1930 (new combination reference)
Navicula contenta f. parallela (Petersen) Hustedt, 1930 accepted as Navicula contenta var. parallela J.B.Petersen, 1928 (new combination reference)
Navicula creuzburgensis Krasske, 1927 (original description)
Navicula dicephala var. neglecta Hustedt, 1930 accepted as Navicula neglecta Krasske, 1929 (new combination reference)
Navicula disjuncta f. disjuncta Hustedt, 1930 (original description)
Navicula elegans f. cuspidata (Cleve) Hustedt, 1930 accepted as Navicula elegans var. cuspidata Cleve, 1895 (new combination reference)
Navicula excelsa Krasske, 1925 (original description)
Navicula graciloides A.Mayer, 1919 (original description)
Navicula grimmei Krasske, 1930 accepted as Dorofeyukea grimmei (Krasske in Hustedt) Kulikovskiy & Kociolek in Kulikovskiy et al., 2019 (original description)
Navicula halophila f. subcapitata (Østrup) Krasske, 1929 accepted as Navicula halophila var. subcapitata Oestrup, 1910 (new combination reference)
Navicula hassiaca Krasske, 1925 (original description)
Navicula integra var. truncata Hustedt, 1911 (original description)
Navicula kotschyi f. undulata Hustedt, 1930 (original description)
Navicula krasskei Hustedt, 1930 (original description)
Navicula longirostris Hustedt, 1930 (original description)
Navicula peregrina f. angusta Hustedt, 1930 (original description)
Navicula peregrina f. minor Kolbe in Hustedt, 1930 (original description)
Navicula placentula f. jenisseyensis (Grunow) Meister accepted as Navicula gastrum f. jenisseyensis Grunow in Cleve & Grunow, 1880 (new combination reference)
Navicula placentula f. lanceolata (Grunow) Hustedt, 1930 accepted as Navicula tumida var. lanceolata Grunow, 1860 (new combination reference)
Navicula placentula f. latiuscula (Grunow) F.Meister accepted as Navicula gastrum var. latiuscula Grunow, 1880 (new combination reference)
Navicula placentula f. rostrata (Mayer) Hustedt, 1930 accepted as Navicula placentula var. rostrata Mayer, 1918 (new combination reference)
Navicula pseudoscutiformis Hustedt, 1930 (original description)
Navicula pupula var. aquaeductae (Krasske) Hustedt, 1930 accepted as Navicula pseudopupula var. aquaeductae Krasske, 1923 (new combination reference)
Navicula pupula var. capitata Hustedt, 1934 (original description)
Navicula pupula var. elliptica Hustedt, 1911 (original description)
Navicula pupula var. mutata (Krasske) Hustedt, 1930 accepted as Navicula mutata var. mutata Krasske, 1929 (new combination reference)
Navicula pupula var. pseudopupula (Krasske) Hustedt, 1930 accepted as Navicula pseudopupula var. pseudopupula Krasske, 1923 (new combination reference)
Navicula quadrisinuata Quint in Hustedt, 1930 (original description)
Navicula reinhardtii f. gracilior (Grunow in Van Heurck) Hustedt, 1930 (new combination reference)
Navicula salinarum f. minima Kolbe in Hustedt, 1930 (original description)