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Navicula pygmaea Ktz. 



Navicula quinquenodis Grun. 



Navicula radiosa Ktz. 



Navicula rad'iosa var. acuta Grun. 



Navicula radiosa var. tenella Breb. 



Navicula Reinhardtii Grun. 



Navicula Reinhardtii var. elliptica M. Per. 



Navicula retusa Breb. 



Navicula retusa var. subrecta. 



Navicula rhomboïdes Eh. (Vanheurckia rhomb.) 



Navicula rhynchocephala Ktz. 



Navicula rotaeana Rab. 



Navicula rupestris Hantz. (viridis var. rup.). 



Navicula Schilberszkyi Pant. 



Navicula Schumanniana Grun. 



NaVicula sculpta Eh. 



Navicula sculpta var. gigantea M. Per. 



Navicula sculpta var. major Cleve. 



Navicula sculpta var. minor M. Per. 



Navicula seminulum Grun. 



Navicula seminulum var. fragilarioides Grun. 



Navicula Sennenii M. Per. 



Navicula silicula Eh. (liniosa Ktz.). 



Navicula silicula var. curta Ost. 



Navicula silicula v'ar. genuina Cleve. 



Navicula silicula var. gibberula. 



Navicula silicula var. inflata. 



Navicula silicula var. truncatula Grun. 



Navicula silicula var. ventricosa (ventricosa) . 



Navicula slesvicensis Grun. 



Navicula sphaerophora Ktz. 



Navicula sphaerophora var. obttjsa M. Per. 



Navicula sphaerophora var. Schmidtii M. Per. 



Navicula stauroptera Grun. 



Navicula stauroptera var. intermedia. 



Navicula stauroptera var. interrupta Cleve. 



Navicula stauroptera var. parva Grun. 



Navicula stomatophora Grun. 



Navicula streptoraphe Cleve. 



Navicula streptoraphe var. minor Cleve. 



Navicula subcapitata Greg. 



