115 



Eunotia minor Hab. 



Eunotia pectinalis Kab. 



Eunotia pectinalis var. ventricosa Grun. 



Fragilaria intermedia Grun. 



Gom/phonema acuminatum Eh. 



Gomphonema capitatum Eh. 



Gomphonema constrictum Eh. 



Gomphonema obtusatwn Kt2. 



Gomphonema parvulum Ktz. 



Hantzschia amphioxys Grun. 



Mastogloia Dansei Thw. 



Melosira crenulata Eh. 



Melosira varians Ag. 



Meridian circulare Ag. 



Navicula appendiculata Ktz. 



Navlcula appendiculata var. irrorata Ktz. 



Nawicula bacillaris Greg. 



Navicula bacillaris var. inconstantissima Grun. 



Navicula borealis Ktz. 



Navicula BRAUNII Grun. - Nouveau pour la region. 



Navicula Brebissonii Ktz. 



Navicula Brebissonii var. curia Grun. 



Navicula Brebissonii var. diminuta V. H. 



Navicula budensis Grun. 



Navicula cincta Eh. 



Navicula cincta var. Heufleri Grun. 



Navicula commutata Grun. 



Navicula fasciata Lag. 



Navic-ula fasciata var. GIGANTEA M. Per. -war. wov. (PI. I, 

 fig. 9). - Semblable au type, mais plus grand et 

 moius finement strie; pseudo-stauros evase d'environ 

 7 p. de largeur. 



Longueur 50 ^.5 largeur mediane 10 /JL; 18 striea 

 en 10 //. 



Navicula fonticola Grun. 



Navicula fontinalis Grun. 



Navicula GASILIDEI Herib. sp. nov. (PI. I, fig. 11, p. B2). 



Navicula gracillima Ralfs var. stauroneiformis urun. 



Navicula hemiptera Ktz. 



Navicula HEMIVIHIDULA M. Per. var. nov. (PI. I, fig. 17). 

 La valve presente, d'un cote la conformation du 



