DiatomBase

Achnanthes gracillima var. gracillima Hustedt, 1927 (original description)
Achnanthes pinnata var. japonica Hustedt, 1927 (original description)
Gomphonema lingulatum var. lingulatum Hustedt, 1927 (original description)
Gomphonema vastum var. vastum Hustedt, 1927 (original description)
Navicula brehmii f. brehmii Hustedt, 1927 (original description)
Navicula globulifera var. globulifera Hustedt, 1927 (original description)
Navicula semenoides Hustedt, 1927 (original description)
Navicula subdicephala f. recta Hustedt, 1927 (original description)
Navicula subdicephala f. subdicephala Hustedt, 1927 (original description)
Nitzschia interrupta var. interrupta (Reichelt in Kuntze) Hustedt, 1927 accepted as Denticula interrupta Reichelt, 1898 (new combination reference)
Pinnularia karelica f. japonica Hustedt, 1927 (original description)
Pinnularia montana f. montana Hustedt, 1927 (original description)
Surirella capronii f. obtusa Hustedt, 1927 (original description)
Surirella chilensis var. tumida Hustedt, 1927 (original description)
Surirella robusta f. lata Hustedt, 1927 (original description)