Fragilaria capucina Desmazières
Belgium (West-Vlaanderen) Bruges
Westendorp & Wallys 447

Conferva fasciata Dillwyn
Gaillonella varians Desmazières
Melosira varians C. Agardh
Collector: Félix Victor Marissal
Belgium (Hainaut) Tournai [as "Tournay"]
Westendorp & Wallys 448

Bacillaria flocculosa Ehrenberg
Bacillaria vulgaris Ehrenberg
Conferva flocculosum Dillwyn
Diatoma fenestratum Kützing
Diatoma vulgare Bory [as "vulgaris"]
Diatoma vulgare Kützing
Collector: Félix Victor Marissal
Belgium (Hainaut) Tournai [as "le Rieu de Barges, prés de Tournai"]
Westendorp & Wallys 497

Cymbella gastroides Kützing
Frustulia gastroides Kützing
Collector: Félix Victor Marissal
Belgium (Brabant) Hal
Westendorp & Wallys 498

Dendrella olivacea Bory
Echinella olivacea Lyngbye
Exilaria minutissima Berkeley
Frustulia olivacea Kützing
Gomphonema berkleyi Greville
Gomphonema geminatum Kützing
Gomphonema leibleini C. Agardh
Gomphonema olivaceum Kützing
Meridion vernale C. Agardh
Sphenella olivacea Kützing
Styllaria olivacea Bory
Collector: Félix Victor Marissal
Belgium (Hainaut) Alain {as "à Alain prés de Tournai"]
Westendorp & Wallys 499

Bacillaria fulva Nitzsch
Cymbella latefasciata C. Agardh [as "late-fasciata"]
Frustulia cuspidata Kützing
Navicula cuspidata Kützing
Navicula fulva Ehrenberg
Collector: Félix Victor Marissal
Belgium (Namur) Namur [as "Bruxelles à Namur"]
Westendorp & Wallys 500

Bacillaria adriatica Lobarzewsky
Bacillaria cleopatrae Ehrenberg
Bacillaria meneghinii Lobarzewsky
Conferva teniaeforme [as "tenaieformis"]
Diatoma brachygonum Carmichael
Diatoma latruncularum C. Agardh
Diatoma lyngbyei C. Agardh
Diatoma marinum C. Agardh
Diatoma marinum Lyngbye
Diatoma teniaeforme C. Agardh
Diatoma tenue v. marinum Lyngbye
Fragilaria fasciata Lyngbye
Fragilaria latruncularia Lyngbye
Grammatophora marina Kützing
Grammatophora oceanica Ehrenberg
Belgium (West-Vlaanderen) Nieuwpoort [as "Nieuport"]
Westendorp & Wallys 792

Gomphonema tinctum C. Agardh
Rhipidophora elongata Kützing
Belgium (West-Vlaanderen) Nieuwpoort, Oostende [as "Nieuport, Ostende"]
Westendorp & Wallys 793

Conferva araneosa Mohr
Conferva comoides Dillwyn
Schizonema araneosum Kützing
Schizonema comoides C. Agardh
Belgium (West-Vlaanderen) Nieuwpoort, Oostende [as "Nieuport, Ostende"]
Westendorp & Wallys 794

Achnanthes parvula Kützing
Belgium (West-Vlaanderen) Oostende [as "Ostende"]
Westendorp & Wallys 795

Frustulia splendens Kützing
Synedra splendens Kützing
Collector: Félix Victor Marissal
Belgium (Brabant) Bruxelles
Westendorp & Wallys 796

Navicula amphiopsis Kützing
[Belgium?]
Westendorp & Wallys 797
[Taxon handwritten on label, no other information.]

Gaillonella nummuloides Ehrenberg
Melosira nummuloides Kützing
Melosira salina Kützing
Sphaerophora globulifera Hassal
Belgium (West-Vlaanderen) Nieuwpoort, Oostende [as "Nieuport, Ostende"]
Westendorp & Wallys 798

Diatoma elongatum C. Agardh
Diatoma tenue v. elongatum Lyngbye
Belgium (West-Vlaanderen) Nieuwpoort [as "Nieuport"]
Westendorp & Wallys 799

Diatoma sulphurascens C. Agardh
Fragilaria confervoides Greville
Fragilaria pectinalis Ehrenberg
Fragilaria virescens Ralfs
Collector: Félix Victor Marissal
Belgium (Brabant) Bruxelles
Westendorp & Wallys 800

Homoeocladia hyalina Kützing [as "Homaecladia"]
Micromega hyalinum Kützing
Belgium (West-Vlaanderen) Oostende [as "Ostende"]
Westendorp & Wallys 894

Conferva rutilans Trentepohl
Schizonema rutilans C. Agardh
{Belgium ?]
Westendorp & Wallys 895

Schizonema striolatum Kützing
Belgium (West-Vlaanderen) Oostende [as "Ostende"]
Westendorp & Wallys 896

Monema comoides Greville
Schizonema grevillei C. Agardh
Belgium (West-Vlaanderen) Oostende [as "Ostende"]
Westendorp & Wallys 897

Exilaria fasciculata v. minor Kützing
Synedra affinis Kützing
Belgium (West-Vlaanderen) Oostende [as "Ostende"]
Westendorp & Wallys 898

Echinella circularis Greville
Exilaria flabellum Ehrenberg
Frustulia circularis Duby
Meridion circulare C. Agardh
Meridion flabellum Ehrenberg
Meridion vernale Leiblein
Collector: August Alexis Adolphe Alexander Bellynck
Belgium (Namur) Namur [as "dans le ruisseau d'Amée, prés de Namur"]
Westendorp & Wallys 1100

Synedra pusilla Kützing
Collector: August Alexis Adolphe Alexander Bellynck
Belgium (Namur) Namur
Westendorp & Wallys 1350