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  Chromista
      Heterokontophyta
            Coscinodiscophyceae
                    Thalassiosirales
                            Stephanodiscaceae
                                     Brevisira
                                             Brevisira arentii
                                                   [Cyclotella arentii]
                                                   [Melosira arentii]
                                     Crateriportula
                                             Crateriportula inconspicua
                                             Crateriportula inconspicuus
                                     Cyclostephanos
                                             Cyclostephanos andinus
                                                   [Cyclotella andina]
                                             Cyclostephanos costatilimbus
                                                   [Stephanodiscus costatilimbus]
                                             Cyclostephanos costatus
                                               Cyclostephanos costatus var. sibiricus
                                             Cyclostephanos damasii
                                                   [Stephanodiscus damasii]
                                             Cyclostephanos delicatus
                                             Cyclostephanos dubius
                                                   [Cyclotella dubia]
                                             Cyclostephanos fenestratus
                                             Cyclostephanos guatamalae
                                             Cyclostephanos guatemalae
                                             Cyclostephanos invisitatus
                                                   [Stephanodiscus invisitatus]
                                             Cyclostephanos kyushuensis
                                             Cyclostephanos lacrimis
                                             Cyclostephanos malawiensis
                                             Cyclostephanos marginatus
                                             Cyclostephanos novae-zeelandiae
                                                   [Stephanodiscus novae-zeelandiae]
                                             Cyclostephanos omarensis
                                             Cyclostephanos pantocsekii
                                             Cyclostephanos patagonicus
                                             Cyclostephanos pliocenicus
                                             Cyclostephanos ponticus
                                             Cyclostephanos pygmaea
                                                   [Cyclotella pygmaea]
                                             Cyclostephanos servant-vildaryi
                                             Cyclostephanos sibiricus
                                             Cyclostephanos stelliformis
                                             Cyclostephanos tholiformis
                                             Cyclostephanos undatus
                                     Cyclotella
                                           [Puncticulata]
                                             Cyclotella actinocyclus
                                             Cyclotella aegaea
                                               Cyclotella aegaea var. pythagorea
                                             Cyclotella affinis
                                             Cyclotella agassizensis
                                             Cyclotella aliquantula
                                             Cyclotella alvarniensis
                                                   [Fragilaria leptostauron var. alvarniensis]
                                             Cyclotella ambigua
                                             Cyclotella americana
                                             Cyclotella andancensis
                                             Cyclotella antiqua
                                             Cyclotella areolata
                                             Cyclotella asterocostata
                                             Cyclotella atmosphaerica
                                             Cyclotella atomus
                                             Cyclotella austriaca
                                             Cyclotella azigzensis
                                             Cyclotella baicalensis
                                                   Cyclotella baicalensis f. ornata
                                             Cyclotella baikalensis
                                             Cyclotella baltica
                                                   [Cyclotella striata var. baltica]
                                             Cyclotella bastowii
                                             Cyclotella bodanica
                                               Cyclotella bodanica var. affinis
                                               Cyclotella bodanica var. intermedia
                                               Cyclotella bodanica var. michiganensis
                                               Cyclotella bodanica var. stellata
                                             Cyclotella bodanica-comta
                                             Cyclotella bomba
                                             Cyclotella bornata
                                             Cyclotella catenata
                                             Cyclotella chaetoceras
                                             Cyclotella choctawhatcheeana
                                                   [Cyclotella caspia]
                                                   [Cyclotella hakanssoniae]
                                             Cyclotella comata
                                             Cyclotella comensis
                                             Cyclotella comta
                                                   [Discoplea comta]
                                                   [Puncticulata comta]
                                               Cyclotella comta var. bodanica
                                               Cyclotella comta var. comta
                                               Cyclotella comta var. oligactis
                                               Cyclotella comta var. paucipunctata
                                               Cyclotella comta var. quadrijuncta
                                             Cyclotella convexa
                                             Cyclotella cornuta
                                             Cyclotella corona
                                             Cyclotella coscinodiscus
                                             Cyclotella costei
                                             Cyclotella crassa
                                             Cyclotella cretica
                                             Cyclotella cryptica
                                             Cyclotella cyclopuncta
                                             Cyclotella dalasiana
                                             Cyclotella delicatissima
                                             Cyclotella delicatula
                                             Cyclotella dendrochaera
                                             Cyclotella denticulata
                                             Cyclotella desikacharyi
                                             Cyclotella discostelliformica
                                             Cyclotella distinguenda
                                                   [Cyclotella tecta]
                                               Cyclotella distinguenda var. mesoleia
                                               Cyclotella distinguenda var. unipunctata
                                                     [Cyclotella operculata var. unipunctata]
                                             Cyclotella dives
                                             Cyclotella elgeri
                                             Cyclotella elymaea
                                             Cyclotella exigua
                                             Cyclotella facetia
                                             Cyclotella fottii
                                             Cyclotella gamma
                                             Cyclotella glabriuscula
                                                   [Cyclotella comta var. glabriuscula]
                                                   [Puncticulata glabriuscula]
                                             Cyclotella glomerata
                                                   [Discostella glomerata]
                                             Cyclotella gordonensis
                                             Cyclotella gracilis
                                             Cyclotella graeca
                                             Cyclotella hellae
                                             Cyclotella hispanica
                                             Cyclotella horstii
                                             Cyclotella hubeiana
                                             Cyclotella idahica
                                             Cyclotella iranica
                                             Cyclotella iridioides
                                             Cyclotella iris
                                               Cyclotella iris var. baltalensis
                                             Cyclotella iwatensis
                                             Cyclotella jonesii
                                             Cyclotella kansasensis
                                             Cyclotella kathmanduensis
                                             Cyclotella katiana
                                             Cyclotella kisselevii
                                             Cyclotella krammeri
                                             Cyclotella kuetzingiana
                                                   [Cyclotella meneghiniana var. kuetzingiana]
                                               Cyclotella kuetzingiana var. parva
                                               Cyclotella kuetzingiana var. planetophora
                                               Cyclotella kuetzingiana var. radiosa
                                             Cyclotella kurdica
                                             Cyclotella kutzingiana
                                             Cyclotella lacunarum
                                             Cyclotella lacus-karluki
                                             Cyclotella lemanensis
                                                   [Cyclotella bodanica var. lemanensis]
                                             Cyclotella lineata
                                             Cyclotella litoralis
                                             Cyclotella lucernensis
                                             Cyclotella mammilla
                                             Cyclotella mascarenica
                                             Cyclotella maxima
                                             Cyclotella meduanae
                                             Cyclotella melosiroides
                                             Cyclotella meneghiniana
                                                   [Cyclotella kutzingiana var. meneghiniana]
                                                   [Stephanocyclus meneghiniana]
                                                   [Surirella melosiroides]
                                                   Cyclotella meneghiniana f. plana
                                                         [Cyclotella meneghiniana var. plana]
                                               Cyclotella meneghiniana var. Laevissiina
                                               Cyclotella meneghiniana var. brevistriata
                                               Cyclotella meneghiniana var. convexa
                                               Cyclotella meneghiniana var. fluviatilis
                                               Cyclotella meneghiniana var. major
                                               Cyclotella meneghiniana var. minutissima
                                               Cyclotella meneghiniana var. pumila
                                               Cyclotella meneghiniana var. quadrata
                                               Cyclotella meneghiniana var. stigmata
                                             Cyclotella michiganiana
                                             Cyclotella minima
                                             Cyclotella minuta
                                             Cyclotella multipunctata
                                             Cyclotella neocaledonica
                                             Cyclotella notata
                                             Cyclotella ocellata
                                             Cyclotella oligactis
                                             Cyclotella omarensis
                                             Cyclotella operculata
                                               Cyclotella operculata var. mesoleia
                                               Cyclotella operculata var. radiosa
                                             Cyclotella orientalis
                                             Cyclotella ornata
                                             Cyclotella ovalis
                                             Cyclotella pantanelliana
                                             Cyclotella papillosa
                                             Cyclotella perforata
                                             Cyclotella peruana
                                             Cyclotella physoplea
                                             Cyclotella picta
                                             Cyclotella planctonica
                                             Cyclotella planktonica
                                             Cyclotella pliostelligera
                                             Cyclotella plitvicensis
                                             Cyclotella plitviscensis
                                             Cyclotella polymorpha
                                             Cyclotella praekuetzingiana
                                             Cyclotella praetermissa
                                             Cyclotella proshkinae
                                             Cyclotella pseudocomensis
                                             Cyclotella pseudokansasica
                                             Cyclotella pseudonana
                                             Cyclotella pseudostelligera
                                                   [Discostella pseudostelligera]
                                             Cyclotella pumila
                                             Cyclotella punctata
                                             Cyclotella quadriiuncta
                                             Cyclotella quillensis
                                             Cyclotella radiosa
                                                   [Cyclotella comta var. radiosa]
                                                   [Lindavia radiosa]
                                                   [Puncticulata radiosa]
                                             Cyclotella rectangula
                                             Cyclotella rossii
                                             Cyclotella scaldensis
                                             Cyclotella schroeteri
                                                   [Cyclotella quadrijuncta]
                                             Cyclotella schumannii
                                             Cyclotella servant-vildaryi
                                                   Cyclotella servant-vildaryi f. robusta
                                               Cyclotella servant-vildaryi var. elegans
                                             Cyclotella sevillana
                                             Cyclotella sevilleana
                                             Cyclotella sexnotata
                                             Cyclotella sexpunctata
                                             Cyclotella sibirica
                                             Cyclotella sinensis
                                             Cyclotella socialis
                                             Cyclotella spinosa
                                             Cyclotella stelligera
                                                   [Cyclotella meneghiniana var. stelligera]
                                             Cyclotella stelligeroides
                                             Cyclotella stengella
                                             Cyclotella stoermeri
                                             Cyclotella striata
                                                   [Coscinodiscus striatus]
                                                   [Cyclotella dallasiana]
                                                   Cyclotella striata f. major
                                               Cyclotella striata var. ambigua
                                               Cyclotella striata var. bipunctata
                                               Cyclotella striata var. intermedia
                                               Cyclotella striata var. mesoleia
                                               Cyclotella striata var. radiosa
                                               Cyclotella striata var. striata
                                               Cyclotella striata var. subsalina
                                                     [Cyclotella subsalina]
                                             Cyclotella strisignata
                                             Cyclotella stylorum
                                                   Cyclotella stylorum f. minuta
                                             Cyclotella styriaca
                                             Cyclotella substelligera
                                             Cyclotella sudanensis
                                             Cyclotella temperei
                                             Cyclotella tenuistriata
                                             Cyclotella texta
                                             Cyclotella thienemannii
                                               Cyclotella thienemannii var. minuscula
                                             Cyclotella tibetana
                                             Cyclotella transylvanica
                                               Cyclotella transylvanica var. disseminatepunctata
                                             Cyclotella trichonidea
                                               Cyclotella trichonidea var. parva
                                             Cyclotella tripartita
                                             Cyclotella tuberculata
                                             Cyclotella undata
                                             Cyclotella undulata
                                             Cyclotella unipunctata
                                             Cyclotella vorticosa
                                             Cyclotella woltereckii
                                                   [Discostella woltereckii]
                                             Cyclotella wuerthrichiana
                                             Cyclotella wuethrichiana
                                             Cyclotella wulfiae
                                     Discostella
                                             Discostella areolata
                                             Discostella asterocostata
                                             Discostella elentarii
                                                   [Cyclotella elentarii]
                                             Discostella mascarenica
                                             Discostella pliostelligera
                                             Discostella stelligera
                                               Discostella stelligera var. microrobusta
                                                     [Cyclotella stelligera var. microrobusta]
                                               Discostella stelligera var. robusta
                                             Discostella stelligeroides
                                             Discostella tasmanica
                                                   [Cyclotella tasmanica]
                                             Discostella tatrica
                                     Mesodictyon
                                             Mesodictyon cyclotelloides
                                             Mesodictyon fovis
                                             Mesodictyon gasseae
                                             Mesodictyon hyalinum
                                             Mesodictyon magnum
                                             Mesodictyon nemanense
                                             Mesodictyon parvulum
                                             Mesodictyon plicatum
                                             Mesodictyon sectorale
                                             Mesodictyon undulatum
                                     Pelagodictyon
                                             Pelagodictyon fritzii
                                             Pelagodictyon spinosum
                                             Pelagodictyon tenue
                                     Pleurocyclus
                                             Pleurocyclus stechlinensis
                                     Pliocaenicus
                                             Pliocaenicus cathayanus
                                             Pliocaenicus costatus
                                               Pliocaenicus costatus var. leprindus
                                               Pliocaenicus costatus var. sibiricus
                                             Pliocaenicus harzii
                                             Pliocaenicus hercynicus
                                             Pliocaenicus jilinensis
                                             Pliocaenicus montana
                                             Pliocaenicus omarensis
                                             Pliocaenicus pantocseki
                                             Pliocaenicus pantocsekii
                                             Pliocaenicus pygmaea
                                             Pliocaenicus pygmaeus
                                             Pliocaenicus seczkinae
                                             Pliocaenicus undulatus
                                     Pseudostephanodiscus
                                             Pseudostephanodiscus perforatus
                                                   [Stephanodiscus perforatus]
                                     Stephanocostis
                                             Stephanocostis chantaica
                                             Stephanocostis chantaicus
                                             Stephanocostis lucens
                                     Stephanodiscus
                                             Stephanodiscus aegyptiacus
                                             Stephanodiscus agassizensis
                                             Stephanodiscus akanensis
                                             Stephanodiscus alpinus
                                             Stephanodiscus asteroides
                                               Stephanodiscus asteroides var. intermedia
                                             Stephanodiscus astraea
                                                   [Cyclotella astraea]
                                                   [Discoplea astraea]
                                               Stephanodiscus astraea var. bizonata
                                               Stephanodiscus astraea var. g
                                               Stephanodiscus astraea var. incertus
                                               Stephanodiscus astraea var. intermedia
                                               Stephanodiscus astraea var. matrensis
                                               Stephanodiscus astraea var. multipunctata
                                               Stephanodiscus astraea var. russica
                                               Stephanodiscus astraea var. simplex
                                               Stephanodiscus astraea var. spinulosa
                                               Stephanodiscus astraea var. transilvanica
                                             Stephanodiscus astraeae
                                                   Stephanodiscus astraeae f. woloszynskae
                                             Stephanodiscus atmosphaerica
                                             Stephanodiscus atmosphaericus
                                             Stephanodiscus balatonis
                                             Stephanodiscus balticus
                                             Stephanodiscus bellus
                                               Stephanodiscus bellus var. novae
                                             Stephanodiscus berolinensis
                                             Stephanodiscus biharensis
                                             Stephanodiscus binatus
                                             Stephanodiscus binderanus
                                                   [Melosira binderana]
                                               Stephanodiscus binderanus var. oestrupi
                                             Stephanodiscus biserialis
                                             Stephanodiscus biwensis
                                             Stephanodiscus carconensis
                                                   Stephanodiscus carconensis f. maxima
                                                   Stephanodiscus carconensis f. minor
                                               Stephanodiscus carconensis var. minor
                                               Stephanodiscus carconensis var. pusillus
                                             Stephanodiscus carpathica
                                             Stephanodiscus conspicueporus
                                             Stephanodiscus delicatus
                                             Stephanodiscus densus
                                             Stephanodiscus dubius
                                                   Stephanodiscus dubius f. longiseta
                                               Stephanodiscus dubius subsp. sibiricus
                                               Stephanodiscus dubius var. arcticus
                                               Stephanodiscus dubius var. dispersus
                                               Stephanodiscus dubius var. jeniseyensis
                                               Stephanodiscus dubius var. radiosus
                                               Stephanodiscus dubius var. romanicus
                                             Stephanodiscus dzhilindus
                                             Stephanodiscus elegans
                                             Stephanodiscus entzii
                                             Stephanodiscus epidendrum
                                             Stephanodiscus excentricus
                                             Stephanodiscus exiguus
                                             Stephanodiscus fenestralis
                                             Stephanodiscus formosus
                                             Stephanodiscus fossilis
                                             Stephanodiscus galileensis
                                             Stephanodiscus gayhartianus
                                             Stephanodiscus gravitoides
                                             Stephanodiscus hamadryas
                                             Stephanodiscus hantzschi
                                               Stephanodiscus hantzschi var. zachariasi
                                             Stephanodiscus hantzschianus
                                               Stephanodiscus hantzschianus var. pusillus
                                             Stephanodiscus hantzschii
                                                   Stephanodiscus hantzschii f. parva
                                                   Stephanodiscus hantzschii f. tenuis
                                               Stephanodiscus hantzschii var. delicatula
                                               Stephanodiscus hantzschii var. pusilla
                                             Stephanodiscus heterostylus
                                             Stephanodiscus incognitus
                                             Stephanodiscus inconspicua
                                             Stephanodiscus inconspicuus
                                             Stephanodiscus irregularis
                                             Stephanodiscus jamsranii
                                             Stephanodiscus kanitzii
                                                   Stephanodiscus kanitzii f. inermis
                                                   Stephanodiscus kanitzii f. inordinata
                                                   Stephanodiscus kanitzii f. magna
                                                   Stephanodiscus kanitzii f. major
                                                   Stephanodiscus kanitzii f. partita
                                                   Stephanodiscus kanitzii f. spinosa
                                               Stephanodiscus kanitzii var. inermis
                                             Stephanodiscus khurseviczae
                                             Stephanodiscus komoroensis
                                             Stephanodiscus kuetzingii
                                             Stephanodiscus lineatus
                                             Stephanodiscus lucens
                                             Stephanodiscus major
                                             Stephanodiscus makarovae
                                             Stephanodiscus marginatus
                                             Stephanodiscus matrensis
                                             Stephanodiscus medius
                                             Stephanodiscus minor
                                             Stephanodiscus minuta
                                             Stephanodiscus minutulus
                                                   [Cyclotella minutula]
                                                   [Cyclotella operculata var. minutula]
                                                   [Cyclotella rotula var. minutula]
                                                   [Discoplea minutula]
                                                   [Stephanodiscus astraea subsp. minutula]
                                                   [Stephanodiscus astraea var. minutula (minutulus)]
                                                   [Stephanodiscus niagarae var. minutula]
                                                   [Stephanodiscus rotula var. minutula]
                                             Stephanodiscus minutus
                                             Stephanodiscus miyagiensis
                                             Stephanodiscus mongolicus
                                             Stephanodiscus muelleri
                                             Stephanodiscus nativus
                                             Stephanodiscus nemanensis
                                             Stephanodiscus neoaegypticus
                                               Stephanodiscus neoaegypticus var. fekrii
                                             Stephanodiscus neoastraea
                                             Stephanodiscus niagarae
                                                   Stephanodiscus niagarae f. minor
                                               Stephanodiscus niagarae var. magnifica
                                             Stephanodiscus nipigonensis
                                             Stephanodiscus omarensis
                                             Stephanodiscus oregonica
                                                   [Cyclotella oregonica]
                                                   [Discoplea oregonica]
                                             Stephanodiscus oregonicus
                                             Stephanodiscus pantocsekii
                                             Stephanodiscus parvus
                                             Stephanodiscus ponticus
                                             Stephanodiscus popovskayae
                                             Stephanodiscus prohantzschii
                                             Stephanodiscus pulcherrimus
                                             Stephanodiscus punctatus
                                             Stephanodiscus pusillus
                                             Stephanodiscus radiatus
                                             Stephanodiscus rhombus
                                             Stephanodiscus robustus
                                             Stephanodiscus rotula
                                                   [Cyclotella rotula]
                                             Stephanodiscus rugosus
                                             Stephanodiscus sinensis
                                             Stephanodiscus skabitschevskyi
                                             Stephanodiscus socialis
                                             Stephanodiscus soochowensis
                                             Stephanodiscus speciosus
                                             Stephanodiscus subsalsus
                                             Stephanodiscus subtilis
                                               Stephanodiscus subtilis var. kriegeri
                                               Stephanodiscus subtilis var. van
                                             Stephanodiscus subtransilvanicus
                                             Stephanodiscus subtranssylvanicus
                                             Stephanodiscus sudanensis
                                             Stephanodiscus superiorensis
                                             Stephanodiscus suzukii
                                                   [Stephanodiscus pseudosuzukii]
                                             Stephanodiscus symbolophora
                                             Stephanodiscus tenuis
                                                   Stephanodiscus tenuis f. minor
                                               Stephanodiscus tenuis var. tener
                                             Stephanodiscus transsylvanicus
                                             Stephanodiscus transylvanicus
                                             Stephanodiscus triporus
                                             Stephanodiscus vesiculosus
                                             Stephanodiscus vestibulis
                                             Stephanodiscus volgensis
                                             Stephanodiscus yellowstonensis
                                             Stephanodiscus yukonensis
                                             Stephanodiscus zachariasi
                                     Tertiariopsis
                                             Tertiariopsis costatus
                                             Tertiariopsis impersepta
                                             Tertiariopsis nipponica

Problematic Rooting (7552)
                                             Puncticulata austriaca
                                             Puncticulata bodanica
                                             Puncticulata graeca
                                             Puncticulata kurdica
                                             Puncticulata notata
                                             Puncticulata praetermissa
                                             Puncticulata versiformis