Fragilaria bicapitata f. genuina Mayer, 1937 (original description)
Fragilaria brevistriata f. genuina Mayer, 1937 (original description)
Fragilaria brevistriata var. genuina Mayer, 1937 (original description)
Fragilaria capucina f. caudata Mayer, 1937 (original description)
Fragilaria capucina f. distans Mayer, 1937 (original description)
Fragilaria capucina f. genuina Mayer, 1937 (original description)
Fragilaria construens f. extrema Mayer, 1937 (original description)
Fragilaria construens f. genuina Mayer, 1937 (original description)
Fragilaria construens f. lata Mayer, 1937 (original description)
Fragilaria construens f. pusilla (Grunow) Mayer, 1937 accepted as
Fragilaria construens var. pusilla Grunow, 1862 (new combination reference)
Fragilaria construens f. rhomboidalis (Mayer) Mayer, 1937 accepted as
Fragilaria construens var. rhomboidalis Mayer, 1916 (1917) (new combination reference)
Fragilaria construens f. subrotunda Mayer, 1917 (new combination reference)
Fragilaria construens f. typica Mayer, 1937 (original description)
Fragilaria harrisonii f. genuina Mayer, 1937 (original description)
Fragilaria harrisonii f. minutissima Mayer, 1937 (original description)
Fragilaria harrisonii f. obliqua Mayer, 1937 (original description)
Fragilaria harrisonii f. tripartita Mayer, 1937 (original description)
Fragilaria intermedia f. genuina Mayer, 1937 (original description)
Fragilaria intermedia var. lusus caudata Mayer, 1937 (original description)
Fragilaria leptostauron f. genuina Mayer, 1937 (original description)
Fragilaria leptostauron f. genuina (Grunow) Mayer, 1937 accepted as
Fragilaria harrisonii var. genuina Grunow, 1862 (new combination reference)
Fragilaria leptostauron f. iaequilatera Mayer, 1937 (original description)
Fragilaria leptostauron f. inaequilatera Mayer, 1937 (original description)
Fragilaria leptostauron f. minutissima Mayer, 1937 (original description)
Fragilaria leptostauron f. obliqua Mayer, 1937 (original description)
Fragilaria leptostauron f. tripartita Mayer, 1937 (original description)
Fragilaria leptostauron f. typica Mayer, 1937 (original description)
Fragilaria leptostauron var. typica Mayer, 1937 (original description)
Fragilaria leptostauron var. woerthensis Mayer, 1937 (original description)
Fragilaria pinnata f. genuina Mayer, 1937 (original description)
Fragilaria pinnata f. subinflata Mayer, 1937 (original description)
Fragilaria pinnata f. typica Mayer, 1937 (original description)
Fragilaria pinnata var. acuminata (A.Mayer) Regenbogen (original description)
Fragilaria pinnata var. subrotunda Mayer, 1937 (original description)
Fragilaria pinnata var. subsolitaris (Grunow) Mayer, 1937 (new combination reference)
Fragilaria pinnata var. ventriculosa (Schumann) Mayer, 1937 accepted as
Odontidium ventriculosum Schumann, 1862 (new combination reference)
Fragilaria producta f. distans Mayer, 1937 (original description)
Fragilaria producta f. genuina Mayer, 1937 (original description)
Fragilaria producta f. lusus caudata Mayer, 1937 (original description)
Fragilaria producta f. minores Mayer, 1937 (original description)
Fragilaria virescens f. curta Mayer, 1937 (original description)
Fragilaria virescens f. genuina (Mayer) Mayer, 1937 accepted as
Fragilaria virescens f. genuina Mayer, 1913 (new combination reference)
Fragilaria virescens f. typica Mayer, 1937 (original description)
Fragilaria virescens var. undatiformis Mayer, 1937 (original description)