— 39 - 



Cymbella parva W. Sm. 



Cymbella ventricosa Ktz. 



Epithernia tu r gicla Ktz. 



Eunotia praerupta Eh. 



Eunotùi praerupta var. curta Grun. 



Gomphonema constrictum Eh. 



Gomphonema. parvulum Ktz. 



Hantzschia ampîiio.vys Grun. 



Mastogloia Dansei Thw. 



Mastogloia Dansei var. elUptica Ag. 



Navicula aipestris Grun. 



Navioula appencUcidata A g*. 



Navicula borealis Eh. 



Navioula Brébissonii Ktz. 



Navicula cincta Eh. 



Navicula cincta var. Heufleri Grun. 



Navicula fasciata Lag. 



Navicula obi on g a Ktz. 



Navicula silicula Eh. 



Navicula silicula var. genuina Cl. 



Navicula sphaerophora Ktz. 



Navicula stauroptera Grun. 



Navicula stauroptera var. interrupta Cl. 



Navicula viridis Nitz. 



Nîtzschia hungarica Grun. 



Nitzschia linearis W. Sm. 



Nitzschia tryblionella Hantz. 



Pleurosigma attenuatum Ktz. 



Rhopalodia gibberula 0. Mùll. 



Rhopalodia gibberula var. Fan Heurchii 0. Mùll. 



Surirella ovalis Breb. 

 Surirclla ovata Ktz. 

 Surirella ovata var. minor Grun. 

 Synedra delicatissima W. Sm. 

 Synedra am.phicephala Ktz. 

 Synedra ulna Eh. 



