175 



Xavicula dactylus Ktz. 



Navicula dactylus var. MINOR Ost. 



Navicula Dariana A. Sch. var.? 



Navicula DEBILITATA M. Per. 



Navicula DEBLOCKII M. Per. 



Navicula DELPIROUI M. Per. 



Navicula dicephala Eli. 



Navicula dicephala var. minor. 



Navicula digitoradiata Greg. 



Navicula DISTINGUENDA Cleve. 



Navicula divergens "W. Sm. 



Navicula divergentissinia Grun. 



Navicula dubia Eh. 



Navicula elliptica Ktz. (Diploneis elliptica). 



Navicula exigua Greg. 



Navicula fasciata Lag. 



Navicula fasciata var. GIGANTEA M. Per. 



Xavicula fasciata var. inconstantissima. 



Navicula fasciata var. MARCATA Ost. 



Navicula fasciata var. thermalis. 



Navicula firma Ktz. 



Navicula Flo-town Grun. 



Navicula fonticola Grun. 



Navicula fontinalis Grun. 



Navicula GASILIDEI M. Per. 



Navicula Gasiliclei var. MAJOR M. Per. 



Navicula Gasilidei var. MINOR M. Per. 



Navicula gastrum Eh. 



Navicula gastrum var. major. 



Navicula gentilis Donkin. 



Navicula gibba Ktz. 



Navicula gigas Ktz. 



Navicula GOMPHONEMACEA Ost. 



Navicula gracilis Eh. 



Navicula gracilis var. neglecta V. H. 



Navicula gracillima Ralfs. 



Navicula gracillima var. stauroneiformis. 



Navicula gregaria Donkin. 



Navicula halophila Grun. 



Xovicula halophila f a minor. 



Navicula halophila var. AHVEENENSE "R. d'Aub. 



