39 



Cymbella parva W. Sm. 

 Cymbella ventricosa Ktz. 



E pit he mi a turgid a Ktz. 



Eunotia praerupta Eh. 



Eunotia pracnr/ifa var. curta Grim. 



Gomphonema constrictum Eh. 

 Gomphonema parvulum Ktz. 

 Hantzsclda ampJiioxys Grun. 



Mastogloia Dansei Thw. 

 Mastogloia Dansei var. elliptica Ag. 



Navicula alpestris Grun. 



Navicula appendiculata Ag\ 



Navicula borealis Eh. 



Na-vi cula Brebissonii Ktz. 



Navicula cincta Eh. 



Navicula cincta var. Henfleri Grun. 



Navicula fasciata Lag. 



Navicula oblonga Ktz. 



Navicula silicula Eh. 



Navicula silicula var. genuina Cl. 



Navicula spliaerophora Ktz. 



Navicula stauropt.era Gru . . 



Navicula stauroptera var. interrupts Cl. 



Navicula viridis Nitz. 



Nitzschia hungarica Grun. 



Nitzschia linearis W. >Sm. 



Nitzschia tryblionella Hantz. 



Pleurosigma attenuatum Ktz. 



Rhopalodia gibberula 0. Miill. 



Rhopalodia gibberula var. 7^??- Heurckii O. Miill 



Surirella ovalis Breb. 



Surirella ovata Ktz. 



Surirella ovata var. minor Grun. 



Synedra dclicatissima "W. Sm. 



Synedra amphicephala Ktz. 



Synedra ulna Eh. 



