TaxonCodeEffectif
Cocconeis euglypta Ehrenberg emend Romero & Jahn CEUG 54
Navicula cryptotenella Lange-Bertalot NCTE 47
Achnanthidium minutissimum (Kützing) Czarnecki ADMI 36
Navicula gregaria Donkin NGRE 31
Achnanthidium delmontii Peres, Le Cohu et Barthes ADMO 29
Cocconeis placentula Ehrenberg var. placentula CPLA 24
Planothidium frequentissimum(Lange-Bertalot)Lange-Bertalot PLFR 20
Amphora pediculus (Kützing) Grunow APED 18
Navicula tripunctata (O.F.Müller) Bory NTPT 18
Gomphonema minutum(Ag.)Agardh f. minutum GMIN 10
Sellaphora nigri SNIG 10
Nitzschia dissipata (Kützing) Grunow ssp.dissipata NDIS 8
Gomphonema parvulum (Kützing) Kützing var. parvulum f. parvulum GPAR 6
Gyrosigma sciotense (Sullivan et Wormley) Cleve GSCI 6
Mayamaea permitis (Hustedt) Bruder & Medlin MPMI 6
Melosira varians Agardh MVAR 6
Navicula capitatoradiata Germain NCPR 6
Sellaphora atomoides SEAT 6
Cocconeis pseudolineata (Geitler) Lange-Bertalot COPL 5
Surirella lacrimula English SLAC 5
Fistulifera saprophila (Lange-Bertalot & Bonik) Lange-Bertalot FSAP 4
Fallacia subhamulata (Grunow in V. Heurck) D.G. Mann FSBH 4
Navicula antonii Lange-Bertalot NANT 4
Navicula cryptocephala Kützing NCRY 4
Nitzschia palea (Kützing) W.Smith var. palea NPAL 4
Nitzschia sociabilis Hustedt NSOC 4
Achnanthidium pyrenaicum (Hustedt) Kobayasi ADPY 3
Cocconeis placentula Ehrenberg var.lineata (Ehr.)Van Heurck CPLI 3
Navicula germainii Wallace NGER 3
Craticula subminuscula CSNU 2
Encyonema silesiacum (Bleisch in Rabh.) D.G. Mann ESLE 2
GOMPHONEMA C.G. Ehrenberg GOMP 2
Cocconeis pediculus Ehrenberg CPED 1
Mayamaea alcimonica MALC 1
Nitzschia capitellata Hustedt in A.Schmidt & al. NCPL 1
Nitzschia heufleriana Grunow NHEU 1
Nitzschia frequens Hustedt NIFQ 1
Nitzschia linearis(Agardh) W.M.Smith var.linearis NLIN 1
Nitzschia recta Hantzsch in Rabenhorst NREC 1
Navicula trivialis Lange-Bertalot var. trivialis NTRV 1
Nitzschia linearis(Agardh) W.M.Smith var.tenuis (W.Smith) Grunow in Cleve & Grunow NZLT 1
Planothidium rostratoholarcticum PROH 1
Punctastriata lancettula (Schumann) Hamilton & Siver PULA 1
Tryblionella kuetzingii TKUE 1
Ulnaria ulna (Nitzsch.) Compère UULN 1