33 



Navicula cincta vur. Heu fieri Grun. 



Navicula dactylus Ktz. 



Nfiricula (jracilli ma llalfs. 



Navicula hemiptera Ktz. 



Navicula legumen Eh. 



Navicula limosa Ktz. 



Navicula limosa var. MACULATA M. Per. var. no-y. (PI. 



fig- 15) (1). 



Navicula lunosa var. silicnla Grun. 

 .\ ttoicula limosa var. subinflata Grun. 

 Navicula major Ktz. 

 Navicula peregrina Ktz. 

 .\ a TICK I a [>n [tnla Ktz. 

 Navicula pygmaea Ktz. 

 Navicula, quinquenodis Gruu. 

 Navicula rupe.ttris Hantz. 

 Navicula xculpta Eh. 

 Navicula sphaerophora Ktz. 



Navicula subcapitata var. stanrotieiformis Grun. 

 Navicula ventricosa Eh. 

 Navicula ventricosa var. minuta Grun. 

 Navicula viridis Ktz. 

 Navicula viridis var. commutata Grun. 

 Navicula viridula f. minor Gruu. 

 Nitzschia ac-u miinita Grun. 

 N it zs chia amphibia Grun. 

 Nitzschia denticula Grun. 

 Nitzschia frnstulinn Grun. 

 Nitzxchia pale-a W. Sm. 

 Nitzschia frustulu/m Gruu. 

 Nit:*i-hi(i jxdea W. Sm. 

 Nitzschia tenuix W. Sm. 

 Nitzschia vitraea Norm. 

 Rhoicosphenia curvata Grun. 

 Rhopalodia constricta 0. Miill. 

 Rhopalodia gibba 0. Miill. 

 Rhopalodia gibba var. ventricosa 0. Miill. 

 Rhopalodia gibberula 0. Miill. 



(1) Pour la description voir le Travertin de Si-Marguerite, p. 93. 



