TaxonCodeEffectif
Navicula cryptotenella Lange-Bertalot NCTE 79
Achnanthidium druartii Rimet & Couté in Rimet & al. ADRU 69
Nitzschia amphibia Grunow f.amphibia NAMP 63
Navicula tripunctata (O.F.Müller) Bory NTPT 34
Sellaphora nigri SNIG 23
Nitzschia fonticola Grunow in Van Heurck NFON 17
Amphora pediculus (Kützing) Grunow APED 10
Luticola goeppertiana LGOP 10
Nitzschia tabellaria (Grunow) Grunow in Cl. & Grunow NTAB 9
Navicula capitatoradiata Germain NCPR 8
Nitzschia dissipata (Kützing) Grunow ssp.dissipata NDIS 8
Navicula reichardtiana Lange-Bertalot var. reichardtiana NRCH 8
Craticula subminuscula CSNU 6
Nitzschia paleacea (Grunow) Grunow in van Heurck NPAE 6
Nitzschia palea (Kützing) W.Smith var. palea NPAL 5
Gomphonema parvulum (Kützing) Kützing var. parvulum f. parvulum GPAR 4
Gyrosigma sciotense (Sullivan et Wormley) Cleve GSCI 4
Mayamaea permitis (Hustedt) Bruder & Medlin MPMI 4
Sellaphora pupula (Kützing) Mereschkowksy SPUP 4
Nitzschia costei Tudesque, Rimet & Ector NYCO 3
Achnanthidium eutrophilum (Lange-Bertalot)Lange-Bertalot ADEU 2
Amphora indistincta Levkov AMID 2
Cymbella neoleptoceros Krammer var. neoleptoceros CNLP 2
Fallacia subhamulata (Grunow in V. Heurck) D.G. Mann FSBH 2
Navicula amphiceropsis Lange-Bertalot & Rumrich NAAM 2
Navicula caterva Hohn & Hellerman NCTV 2
Nitzschia archibaldii Lange-Bertalot NIAR 2
Navicula lanceolata (Agardh) Ehrenberg NLAN 2
Nitzschia linearis(Agardh) W.M.Smith var.linearis NLIN 2
Nitzschia sociabilis Hustedt NSOC 2
Nitzschia solgensis Cleve-Euler NSOL 2
Navicula trivialis Lange-Bertalot var. trivialis NTRV 2
Pseudostaurosira brevistriata (Grun.in Van Heurck) Williams & Round PSBR 2
Placoneis symmetrica (Hustedt) Lange-Bertalot PSYM 2
Ulnaria ulna (Nitzsch.) Compère UULN 2