|   | 
|  Kingdom Chromista | 
|   | 
Achnanthidium Kützing – accepted
 | 
|   | 
Amphipleura Kützing – accepted
 | 
|   | 
Biddulphiaceae Kützing – accepted
 | 
|   | 
Cocconeidaceae Kützing – accepted
 | 
|   | 
Coscinodiscaceae Kützing – accepted
 | 
|   | 
Cymbella pediculus Kützing – not accepted
 | 
|   | 
Denticula Kützing – accepted
 | 
|   | 
Diadesmis Kützing – accepted
 | 
|   | 
Diatoma hyalina Kützing – not accepted
 | 
|   | 
Encyonema Kützing – accepted
 | 
|   | 
Epithemia Kützing – accepted
 | 
|   | 
Eunotiaceae Kützing – accepted
 | 
|   | 
Frustula pellucida Kützing – not accepted
 | 
|   | 
Gomphonemataceae Kützing – accepted
 | 
|   | 
Licmophoraceae Kützing – accepted
 | 
|   | 
Navicula amphiceros Kützing – not accepted
 | 
|   | 
Navicula cryptocephala Kützing – accepted
 | 
|   | 
Navicula cryptocephala var. cryptocephala Kützing – accepted
 | 
|   | 
Navicula elliptica Kützing – not accepted
 | 
|   | 
Navicula exilis Kützing – accepted
 | 
|   | 
Navicula laevissima Kützing – not accepted
 | 
|   | 
Navicula limosa Kützing – not accepted
 | 
|   | 
Navicula mutica Kützing – not accepted
 | 
|   | 
Navicula mutica var. mutica Kützing – not accepted
 | 
|   | 
Navicula neglecta Kützing – accepted
 | 
|   | 
Navicula oblongata Kützing – accepted
 | 
|   | 
Navicula phyllepta Kützing – accepted
 | 
|   | 
Navicula pupula Kützing – not accepted
 | 
|   | 
Navicula pupula var. pupula Kützing – not accepted
 | 
|   | 
Navicula pygmaea Kützing – not accepted
 | 
|   | 
Navicula pygmaea var. pygmaea Kützing – not accepted
 | 
|   | 
Navicula radiosa Kützing – accepted
 | 
|   | 
Navicula radiosa var. radiosa Kützing – accepted
 | 
|   | 
Navicula rhynchocephala Kützing – accepted
 | 
|   | 
Navicula rhynchocephala var. rhynchocephala Kützing – accepted
 | 
|   | 
Navicula rostellata Kützing – accepted
 | 
|   | 
Navicula scalprum Kützing – accepted
 | 
|   | 
Navicula sphaerophora Kützing – not accepted
 | 
|   | 
Navicula veneta Kützing – accepted
 | 
|   | 
Navicula vulpina Kützing – accepted
 | 
|   | 
Naviculaceae Kützing – accepted
 | 
|   | 
Odontidium Kützing – accepted
 | 
|   | 
Pilinia Kützing – accepted
 | 
|   | 
Pyxidicula minor Kützing – accepted
 | 
|   | 
Pyxidicula oblonga Kützing – accepted
 | 
|   | 
Rhabdonema Kützing – accepted
 | 
|   | 
Striatellaceae Kützing – accepted
 | 
|   | 
Surirellaceae Kützing – accepted
 | 
|   | 
Synedra superba Kützing – accepted
 | 
|   | 
Tabellariaceae Kützing – accepted | 
|   | 
|  Kingdom Bacteria | 
|   | 
Anabaena bullosa Kützing – invalid
 | 
|   | 
Arthrosiphon Kützing – valid
 | 
|   | 
Calothrix caespitora Kützing – invalid
 | 
|   | 
Cylindrospermum macrospermum Kützing – valid
 | 
|   | 
Entophysalis Kützing – valid
 | 
|   | 
Entophysalis granulosa Kützing – valid
 | 
|   | 
Gloeocapsa Kützing – valid
 | 
|   | 
Gloeocapsa aeruginosa Kützing – valid
 | 
|   | 
Gloeocapsa aeruginosa f. aeruginosa Kützing – valid
 | 
|   | 
Gloeocapsa atrata Kützing – valid
 | 
|   | 
Gloeocapsa compacta Kützing – valid
 | 
|   | 
Gloeocapsa compacta var. compacta Kützing – valid
 | 
|   | 
Gloeocapsa conglomerata Kützing – valid
 | 
|   | 
Gloeocapsa coracina Kützing – valid
 | 
|   | 
Gloeocapsa cryptococcoides Kützing – valid
 | 
|   | 
Gloeocapsa gelatinosa Kützing – valid
 | 
|   | 
Gloeocapsa geminata Kützing – valid
 | 
|   | 
Gloeocapsa monococca Kützing – valid
 | 
|   | 
Gloeocapsa montana Kützing – invalid
 | 
|   | 
Gloeocapsa muralis Kützing – valid
 | 
|   | 
Gloeocapsa nigrescens Kützing – invalid
 | 
|   | 
Gloeocapsa opaca var. pellucida Kützing – valid
 | 
|   | 
Gloeocapsa peniocystis Kützing – valid
 | 
|   | 
Gloeocapsa purpurea Kützing – valid
 | 
|   | 
Gloeocapsa quarternata Kützing – invalid
 | 
|   | 
Gloeocapsa quaternata Kützing – valid
 | 
|   | 
Gloeocapsa quaternata var. quaternata Kützing – valid
 | 
|   | 
Gloeocapsa rosea Kützing – valid
 | 
|   | 
Gloeocapsa rubicunda Kützing – valid
 | 
|   | 
Gloeocapsa rupestris Kützing – valid
 | 
|   | 
Gloeocapsa rupestris var. rupestris Kützing – valid
 | 
|   | 
Gloeocapsa rupicola Kützing – valid
 | 
|   | 
Gloeocapsa sanguinolenta Kützing – valid
 | 
|   | 
Gloeocapsa shuttleworthiana Kützing – valid
 | 
|   | 
Gloeocapsa stillicidiorum Kützing – valid
 | 
|   | 
Gloeocapsa thermalis Kützing – valid
 | 
|   | 
Gloeocapsa violacea Kützing – valid
 | 
|   | 
Gomphosphaeria Kützing – valid
 | 
|   | 
Gomphosphaeria aponina Kützing – valid
 | 
|   | 
Gomphosphaeria aponina ssp. aponica Kützing – invalid
 | 
|   | 
Gomphosphaeria aponina var. aponina Kützing – valid
 | 
|   | 
Hydrococcaceae Kützing – invalid
 | 
|   | 
Hydrococcus Kützing – valid
 | 
|   | 
Hydrococcus ericetorum Kützing – valid
 | 
|   | 
Hydrococcus rivularis Kützing – valid
 | 
|   | 
Hydrococcus ulvaceus Kützing – valid
 | 
|   | 
Merismopedia major Kützing – valid
 | 
|   | 
Merismopedia thermalis Kützing – valid
 | 
|   | 
Merismopedia violacea Kützing – valid
 | 
|   | 
Micraloa aeruginosa Kützing – invalid
 | 
|   | 
Microcystis olivacea Kützing – valid
 | 
|   | 
Microcystis parasitica Kützing – invalid
 | 
|   | 
Nostoc comminutum Kützing – invalid
 | 
|   | 
Nostoc tuberculosum Kützing – valid
 | 
|   | 
Oscillatoria homoeotrichoides Kützing – valid
 | 
|   | 
Oscillatoria tergestina Kützing – invalid
 | 
|   | 
Phormidium bicolor Kützing – valid
 | 
|   | 
Phormidium margaritiferum Kützing – valid
 | 
|   | 
Phormidium tinctorium var. naegelianum Kützing – valid
 | 
|   | 
Phormidium valesiacum Kützing – invalid
 | 
|   | 
Schizothrix hyalina Kützing – invalid
 | 
|   | 
Scytonema clavatum Kützing – valid
 | 
|   | 
Scytonema helveticum Kützing – valid
 | 
|   | 
Sirosiphon Kützing – valid
 | 
|   | 
Sirosiphon alpinus Kützing – valid
 | 
|   | 
Sirosiphon rugulosus Kützing – valid
 | 
|   | 
Symploca elegans var. incrustata Kützing – valid
 | 
|   | 
Symploca fasciculata Kützing – invalid
 | 
|   | 
Symploca friesiana Kützing – valid
 | 
|   | 
Symploca lenormandiana Kützing – valid
 | 
|   | 
Symploca wallrothiana Kützing – valid
 | 
|   | 
Tolypothrix coactilis Kützing – valid
 | 
|   | 
Tolypothrix tenuis ssp. wartmanniana Kützing – invalid | 
|   | 
|  Kingdom Plantae | 
|   | 
Botryococcus Kützing – accepted
 | 
|   | 
Calliblepharis Kützing – accepted
 | 
|   | 
Caulacanthus Kützing – accepted
 | 
|   | 
Cystoclonium Kützing – accepted
 | 
|   | 
Gloeocapsa polydermatica Kützing – not accepted
 | 
|   | 
Goniotrichum Kützing – accepted
 | 
|   | 
Halosaccion Kützing – accepted
 | 
|   | 
Palmophyllum Kützing – accepted
 | 
|   | 
Rhipilia Kützing – accepted
 | 
|   | 
Rhodophyllis Kützing – accepted
 | 
|   | 
Schizomeris Kützing – accepted
 | 
|   | 
Spongomorpha Kützing – accepted
 | 
|   | 
Trichogloea Kützing – accepted
 | 
|   | 
Urococcus Kützing – accepted | 
        
          |   | 
            |