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Nitzschia communis Rab. var. abbreviata Grun. 



Nitzschia rien ti cala Grun. 



Nitzschia di&sipata Grun. 



Nitzschia dubia W. Sm. 



Nitzschia font i cola Grun. 



Nitzschia frustulum Grun. 



Nitzschia frustulum var. minutula Grun. 



Nitzschia hungarica Grun. 



Nitzschia hungarica var. linearis Grun. 



Nitzschia Kittlii Grun. 



Nitzschia lanceolata W. Sm. 



Nitzschia lanceolata f a minima V. H. 



Nitzschia lanceolata var. INCRUSTANS Grun. — Nouveau 



pour la région. 

 Nitzschia linearis W. Sm. 



Nitzschia microcephala Grun. — Nouveau pour la région. 

 Nitzschia minutula Grun. 

 Nitzschia obtusa W. Sm. 

 Nitzschia obtusa var. nana Grun. 

 Nitzschia palea W. Sm. 



Nitzschia perminuta Grun. — Nouveau pour la région. 

 Nitzschia sigma W. Sm. — Nouveau pour la région. 

 Nitzschia sigma var. sigmatella Grun. — Nouveau pour la 



région. 

 Nitzschia sigmoidea W. Sm. 

 Nitzschia spectabilis E-alf. 

 Nitzschia thermalis Auers. 

 Nitzschia thermalis var. intermedia Grun. 

 Nitzschia tryblionella Hantz. 

 Nitzschia tryblionella var. salinarum Grun,. — Nouveau 



pour la région. 

 Nitzschia vitraea Norm. 

 Nitzschia iritraeav&r. gallica M. Per. 



Pleuro sigma atténuât um Grun. 

 Pleur osigma Spencerii W. Sm. 

 Pleurosigma Spencerii var. Arnottii Grun. 

 Rhoicosphenia curvata, Grun. 

 Rhoicosphenia Van Heurckii Grun. 

 Rhopalodia gibba 0. Mùll. 

 Rhopalodia gibba var. ventricosa 0. Mull. 

 Rhopalodia gibberula O. Mûll. 



