Achnanthes baicaliana Frenguelli, 1953 (status source)
Achnanthes baicaliana var. baicaliana Freng., 1953 accepted as Achnanthes baicaliana Frenguelli, 1953 (original description)
Achnanthes baicaliana var. notata Frenguelli, 1953 (original description)
Achnanthes misionera Frenguelli, 1953 (original description)
Gomphonema catarinensis var. misionera Frenguelli, 1953 (original description)
Melosira roeseana f. curvata Frenguelli, 1953 (original description)
Navicula misionera Frenguelli, 1953 (original description)
Navicula mutica var. lanceolata Frenguelli, 1953 accepted as Luticola mutica var. lanceolata (Frenguelli) M.Aboal, 2003 accepted as Luticola lanceolata (Frenguelli) Levkov, Metzeltin & A.Pavlov, 2013 (original description)
Pinnularia brevicostata var. misionera Frenguelli, 1953 (original description)
Pinnularia brevicostata var. undulata Frenguelli, 1953 (original description)
Pinnularia graciloides var. notata Frenguelli, 1953 (original description)
Pinnularia hemiptera var. major Frenguelli, 1953 (original description)
Pinnularia misionera Frenguelli, 1953 (original description)
Pinnularia pectinata Frenguelli, 1953 (original description)
Stauroneis palustris var. australis Frenguelli, 1953 (original description)
Surirella biseriata var. ovata Frenguelli, 1953 (original description)
Tryblionella rustica Frenguelli, 1953 (original description)