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Cocconeis scutelltjm Eh. — Nouveau pour la région. 



Cymbella a f finis Ktz. 



Cymbella anglica La g. 



Cymbella aspera Eh. 



Cymbella cymbiformis Eh. 



Cymbella microcephala Grun. 



Diatoma hiemale Heis. 



Diatoma hiemale var. mesodon Grun. 



Diatoma mdgare Bory. 



EncyoTiema lu nid /i Grun. 



Epithemia turgida Ktz. 



Eunotia arcus Eh. 



Eunotia endecaodon Ealfs. 



Eunotia exigua Breb. 



Eunotia lunaris Grun. 



Eunotia. pectinalis Ras. 



Eunotia pectinalis var. curla Grun. 



Eunotia praerupta Eh. 



Eunotia robusta Ealfs. 



Eunotia robusta var. tetraodon Eh. 



Eunotia triden.fula Eh. 



Fragilaria capucina Desin. 



Fragilaria capucina var. mesolepta Rab. 



Fragilaria vitrea Grun. 



Fragilaria vitrea var. minima Ralf. 



Gomphonema constrictum Eh. 



Gomphonema intricatum Ktz. 



Gomphonema montanum Schum. 



Gomphonema parvulum Ktz. 



Gomphonema subclavatum Grun. 



Gomphonema vibrio Eh. 



Melosira distans Ktz. 



Mêlosira Roeseana Moor. 



Meridion circulai 'c Ag. 



Meridion constrictum Ralfs. 



Navicula Brebissonii Ktz. 



Navicula eincta. Eh. 



Navicula eincta '.var. Hevfleri Grun. 



Navicula Ji ver gens W. Sm. 



Navicula major Ktz. 



Navicula radiosa Ktz. 



