Diatoms of North America
Marina Potapova
Taxon Contributor Review Board
Content Editor, Monoraphid Diatoms Diatoms of North America, Editoral Review Board
Curator Diatom Herbarium, Academy of Natural Sciences of Philadelphia, Drexel University
Diatoms are forever
My studies are focused on the ecology and taxonomy of freshwater, mostly river diatoms. Examination of diatom samples from various parts of the world inspired my interest on biogeography of microbes. I am also interested in systematics and evolutionary history of monoraphid diatoms that are adapted to life in unstable and high-energy environments. I hope that this site will be helpful for those who work with diatoms, but also for anyone who wants to learn more about these fascinating microorganisms.
Projects
Species contributed
Achnanthidium alpestre | Achnanthidium atomus | Achnanthidium deflexum | Achnanthidium delmontii | Achnanthidium druartii | Achnanthidium duthiei | Achnanthidium eutrophilum | Achnanthidium gracillimum | Achnanthidium kranzii | Achnanthidium laticephalum | Achnanthidium minutissimum | Achnanthidium pyrenaicum | Achnanthidium reimeri | Achnanthidium rivulare | Achnanthidium subhudsonis var. kraeuselii | Aulacoseira alpigena | Aulacoseira ambigua | Aulacoseira crassipunctata | Aulacoseira granulata | Aulacoseira granulata var. angustissima | Aulacoseira herzogii | Aulacoseira humilis | Aulacoseira italica | Aulacoseira lirata | Aulacoseira muzzanensis | Aulacoseira newjerseyana | Aulacoseira nivalis | Aulacoseira nivaloides | Aulacoseira nygaardii | Aulacoseira pusilla | Aulacoseira subarctica | Aulacoseira tenella | Aulacoseira valida | Biremis circumtexta | Brachysira subtilis | Caloneis fusus | Capartogramma crucicula | Cavinula maculata | Cavinula scutelloides | Chamaepinnularia gandrupii | Chamaepinnularia krasskei | Chamaepinnularia krookii | Chamaepinnularia witkowskii | Cocconeis fluviatilis | Cocconeis pediculus | Cocconeis placentula | Craticula subminuscula | Cymbella affinis | Cymbella excisiformis | Cymbella proxima | Cymbella proxima fo. gravida | Cymbella subturgidula | Cymbella tropica | Cymbella tumida | Cymbella turgidula | Cymbopleura fluminea | Diatoma moniliformis | Diatoma tenuis | Diatoma vulgaris | Discostella lacuskarluki | Encyonema appalachianum | Eucocconeis alpestris | Eucocconeis americana | Eucocconeis flexella | Eucocconeis laevis | Fallacia latelongitudinalis | Geissleria acceptata | Geissleria decussis | Geissleria kriegeri | Geissleria lateropunctata | Geissleria punctifera | Gliwiczia calcar | Gogorevia exilis | Gomphonema amerhombicum | Hippodonta capitata | Hippodonta capitata subsp. iberoamericana | Hippodonta coxiae | Hippodonta gravistriata | Hippodonta hungarica | Iconella guatimalensis | Karayevia amoena | Karayevia clevei | Karayevia laterostrata | Karayevia ploenensis var. gessneri | Karayevia suchlandtii | Lemnicola hungarica | Luticola arctica | Luticola ventricosa | Melosira varians | Navicula angusta | Navicula caterva | Navicula cryptocephala | Navicula eileeniae | Navicula erifuga | Navicula germainii | Navicula geronimensis | Navicula goersii | Navicula gregaria | Navicula hasta | Navicula lanceolata | Navicula libonensis | Navicula longicephala | Navicula ludloviana | Navicula metareichardtiana | Navicula notha | Navicula radiosa | Navicula recens | Navicula rostellata | Navicula slesvicensis | Navicula subrhynchocephala | Navicula subrostellata | Navicula subwalkeri | Navicula tripunctata | Navicula venerablis | Navicula veneta | Navicula vilaplanii | Navicula viridula | Navicula viridulacalcis subsp. neomundana | Navicula volcanica | Navicymbula pusilla | Nupela carolina | Nupela decipiens | Nupela elegantula | Nupela fennica | Nupela frezelii | Nupela impexiformis | Nupela lapidosa | Nupela neglecta | Nupela pennsylvanica | Nupela poconoensis | Nupela scissura | Nupela subrostrata | Nupela vitiosa | Nupela wellneri | Odontidium mesodon | Pinnularia alabamae | Pinnularia bihastata | Pinnularia cardinaliculus | Pinnularia clericii | Pinnularia dariana | Pinnularia decrescens | Pinnularia ectorii | Pinnularia lailaensis | Pinnularia marchica | Pinnularia nobilis var. regularis | Pinnularia pulchella | Pinnularia pulchella var. canadensis | Pinnularia rexlowei | Pinnularia saprophila | Pinnularia socialis | Pinnularia spinifera | Pinnularia torta | Pinnularia transversa | Pinnularia turgidula | Pinnularia undula | Pinnularia undula var. major | Planothidium abbreviatum | Planothidium amphibium | Planothidium apiculatum | Planothidium biporomum | Planothidium delicatulum | Planothidium frequentissimum | Planothidium incuriatum | Planothidium joursacense | Planothidium lanceolatoides | Planothidium lanceolatum | Planothidium potapovae | Planothidium reichardtii | Planothidium rostratoholarcticum | Platessa bahlsii | Platessa conspicua | Platessa hustedtii | Platessa kingstonii | Platessa lutheri | Platessa oblongella | Platessa stewartii | Platessa strelnikovae | Psammothidium acidoclinatum | Psammothidium alpinum | Psammothidium bioretii | Psammothidium chlidanos | Psammothidium daonense | Psammothidium didymum | Psammothidium harveyi | Psammothidium helveticum | Psammothidium lacustre | Psammothidium lauenburgianum | Psammothidium levanderi | Psammothidium microscopicum | Psammothidium nivale | Psammothidium obliquum | Psammothidium pennsylvanicum | Psammothidium sacculus | Psammothidium scoticum | Psammothidium semiapertum | Psammothidium subatomoides | Reimeria sinuata | Reimeria uniseriata | Rhoicosphenia abbreviata | Rossithidium anastasiae | Rossithidium kriegeri | Rossithidium nodosum | Rossithidium petersenii | Rossithidium pusillum | Sellaphora californica | Sellaphora hohnii | Sellaphora meridionalis | Sellaphora pulchra | Sellaphora rexii | Sellaphora stroemii | Sellaphora subfasciata | Sellaphora wallacei | Skabitschewskia oestrupii | Skabitschewskia peragalloi | Stauroneis stodderi | Stauroneis terryi | Stephanodiscus yellowstonensis | Surirella angusta | Surirella brebissonii | Surirella iowensis | Surirella lacrimula | Synedra mazamaensis | Tryblionella plana var. fennica | Tryblionella scalaris
Species reviewed
Achnanthes coarctata | Achnanthidium crassum | Achnanthidium rosenstockii | Adlafia multnomahii | Brachysira arctoborealis | Brachysira ocalanensis | Brachysira styriaca | Brachysira vitrea | Brachysira zellensis | Cavinula scutiformis | Cocconeis cascadensis | Cocconeis grovei | Cocconeis klamathensis | Cocconeis pseudothumensis | Cocconeis rugosa | Craticula buderi | Cyclotella distinguenda | Cymbella amplificata | Cymbella compacta | Cymbella cymbiformis | Cymbella hantzschiana | Cymbella hustedtii | Cymbella laevis | Cymbella neocistula | Cymbopleura lapponica | Cymbopleura rupicola | Denticula creticola | Didymosphenia geminata | Encyonema leibleinii | Encyonema minutum var. pseudogracilis | Encyonema sibericum | Epithemia alpestris | Eunotia cataractarum | Eunotia exigua | Eunotia incisa | Eunotia microcephala | Eunotia montuosa | Eunotia naegelii | Eunotia nymanniana | Eunotia orthohedra | Eunotia paludosa | Eunotia perpusilla | Eunotia rhomboidea | Eunotia subherkiniensis | Eunotia tenella | Eunotia trinacria | Fallacia hummii | Frickea lewisiana | Frustulia crassinervia | Frustulia krammeri | Frustulia neomundana | Frustulia quadrisinuata | Genkalia digitulus | Gogorevia rostellata | Gomphoneis eriense | Gomphonema acuminatum | Gomphonema apuncto | Gomphonema caperatum | Gomphonema consector | Gomphonema insularum | Gomphonema johnsonii | Gomphonema kobayasii | Gomphonema mehleri | Gomphonema mexicanum | Gomphonema stoermeri | Gomphonema truncatum | Gomphonema turgidum | Gomphonema ventricosum | Gomphosphenia grovei | Gomphosphenia lingulatiformis | Gyrosigma obtusatum | Hippodonta pseudacceptata | Hygropetra balfouriana | Luticola stigma | Mastogloia elliptica | Mastogloia pumila | Navicula cari | Navicula cincta | Navicula cryptocephaloides | Navicula cryptofallax | Navicula duerrenbergiana | Navicula flatheadensis | Navicula galloae | Navicula harmoniae | Navicula hodgeana | Navicula margalithii | Navicula oblonga | Navicula oppugnata | Navicula peregrina | Navicula pseudolanceolata | Navicula rhynchotella | Navicula streckerae | Navicula vaneei | Navicula volcanica | Navicula walkeri | Neidium distinctepunctatum | Neidium fossum | Neidium hercynicum | Nitzschia acidoclinata | Nitzschia exilis | Nitzschia fonticoloides | Nitzschia incognita | Nitzschia innominata | Nitzschia oligotraphenta | Nitzschia perminuta | Nitzschia recta | Nitzschia serpentiraphe | Nitzschia sociabilis | Nitzschia soratensis | Nupela tenuicephala | Pinnularia acrosphaeria | Pinnularia brebissonii | Pinnularia gigas | Pinnularia rhombarea | Pinnularia streptoraphe | Pinnularia suchlandtii | Planothidium sheathii | Psammothidium rossii | Pseudostaurosira microstriata | Pseudostaurosira trainorii | Pulchellophycus schwabei | Rhoicosphenia californica | Rhoicosphenia stoermeri | Sellaphora auldreekie | Sellaphora disjuncta | Sellaphora fusticulus | Sellaphora javanica | Sellaphora laevissima | Sellaphora moesta | Sellaphora schadei | Semiorbis hemicyclus | Stauroneis alabamae | Stauroneis bryocola | Stauroneis conspicua | Stauroneis fluminopsis | Stauroneis kootenai | Stauroneis livingstonii | Stauroneis neohyalina | Stauroneis reichardtii | Stauroneis schroederi | Staurophora tackei | Staurophora wislouchii | Stephanodiscus medius | Surirella cruciata | Surirella undulata | Tryblionella lanceola
Genera contributed
Achnanthidium | Eucocconeis | Genkalia | Gliwiczia | Rossithidium | Skabitschewskia
Genera reviewed
Cymbella | Encyonema | Gomphonema | Karayevia | Planothidium | Psammothidium