Achnanthes lanceolata var. apiculata R.M.Patrick, 1945 accepted as
Planothidium apiculatum (Patrick) R.Lowe in Johansen et al., 2004 accepted as
Planothidium apiculatum (R.M.Patrick) Lange-Bertalot, 1999 (original description)
Achnanthes lewisiana R.M.Patrick, 1945 (original description)
Achnanthes oestrupii var. parvula R.Patrick, 1945 (original description)
Achnanthes stewartii Patrick, 1945 (original description)
Caloneis lewisii Patrick, 1945 (original description)
Fragilaria undata var. lobata R.M.Patrick, 1945 (original description)
Navicula concava Patrick, 1945 (original description)
Navicula exigua var. capitata R.M.Patrick, 1945 (original description)
Navicula poconoensis Patrick, 1945 (original description)
Pinnularia burkei Patrick, 1945 (original description)
Pinnularia cleveii Patrick, 1945 (original description)
Pinnularia gibba var. rostrata R.M.Patrick, 1945 (original description)
Stauroneis kriegeri f. kriegeri Patrick, 1945 (original description)
Vanheurckia rhomboides f. capitata (Mayer) Patrick, 1945 accepted as
Frustulia saxonica var. capitata A.Mayer, 1917 (new combination reference)
Vanheurckia rhomboides var. amphipleuroides (Grunow) Patrick, 1945 accepted as
Navicula rhomboides var. amphipleuroides Grunow, 1880 (new combination reference)