AlgaeBase Taxonomic Thesaurus
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  Chromista
      Heterokontophyta
            Bacillariophyceae
                   [Bacillariophyta]
                    Achnanthales
                            Achnanthaceae
                                     Achnantella
                                     Achnanthes
                                           [Achnanthidium]
                                             Achnanthes Imanishii
                                             Achnanthes Kertschiana
                                             Achnanthes Kolbei
                                               Achnanthes Kolbei var. elliptica
                                             Achnanthes Schulzii
                                             Achnanthes aapajaervensis
                                             Achnanthes abundans
                                               Achnanthes abundans var. elliptica
                                             Achnanthes acares
                                             Achnanthes acidoclinata
                                             Achnanthes acus
                                             Achnanthes acuta
                                             Achnanthes adamantiformis
                                             Achnanthes adamsii
                                             Achnanthes adnata
                                             Achnanthes affinis
                                               Achnanthes affinis var. bistriata
                                               Achnanthes affinis var. jamalinensis
                                               Achnanthes affinis var. minuta
                                             Achnanthes africana
                                             Achnanthes agglutinata
                                             Achnanthes alaskana
                                             Achnanthes altaica
                                                   [Achnanthes recurvata]
                                                   [Amphora altaica]
                                               Achnanthes altaica var. minor
                                             Achnanthes ambigua
                                             Achnanthes americana
                                             Achnanthes amphicephala
                                             Achnanthes anastasiae
                                             Achnanthes anceps
                                             Achnanthes andicola
                                               Achnanthes andicola var. elongata
                                             Achnanthes angustata
                                             Achnanthes angustissima
                                             Achnanthes antarctica
                                             Achnanthes antique
                                             Achnanthes arctica
                                             Achnanthes arcuata
                                             Achnanthes arenaria
                                             Achnanthes arenicola
                                             Achnanthes aretasii
                                             Achnanthes arstasii
                                             Achnanthes astridii
                                             Achnanthes asymbasia
                                             Achnanthes asymetrice
                                             Achnanthes atacamae
                                             Achnanthes athenais
                                               Achnanthes athenais var. minor
                                             Achnanthes atomus
                                               Achnanthes atomus var. congolensis
                                             Achnanthes aubertii
                                             Achnanthes aubortli
                                             Achnanthes australis
                                             Achnanthes austriaca
                                                   Achnanthes austriaca f. intermedia
                                               Achnanthes austriaca var. austriaca
                                               Achnanthes austriaca var. capensis
                                               Achnanthes austriaca var. minor
                                               Achnanthes austriaca var. parallela
                                               Achnanthes austriaca var. ventricosa
                                             Achnanthes baccata
                                             Achnanthes baccillarioides
                                             Achnanthes bacescui
                                             Achnanthes bacillaris
                                             Achnanthes bacillum
                                             Achnanthes baicalansis
                                             Achnanthes baicaliana
                                               Achnanthes baicaliana var. notate
                                             Achnanthes baldjickii
                                               Achnanthes baldjickii subsp. lorenziana
                                               Achnanthes baldjickii var. croatica
                                               Achnanthes baldjickii var. subquadrata
                                             Achnanthes baltalensis
                                               Achnanthes baltalensis var. ovalis
                                             Achnanthes bavarica
                                             Achnanthes bengalensis
                                               Achnanthes bengalensis var. subventricosa
                                             Achnanthes bergiani
                                             Achnanthes bernierii
                                             Achnanthes biasolettiana
                                                   Achnanthes biasolettiana f. minuta
                                               Achnanthes biasolettiana var. subatomus
                                               Achnanthes biasolettiana var. sublinearis
                                               Achnanthes biasolettiana var. thienemannii
                                                     [Achnanthes thienemannii]
                                             Achnanthes bicapitata
                                             Achnanthes biconfusa
                                             Achnanthes bigibba
                                             Achnanthes bijuga
                                             Achnanthes bilunulata
                                             Achnanthes binodis
                                             Achnanthes bioreti
                                             Achnanthes bistriata
                                             Achnanthes bongrainii
                                             Achnanthes borealis
                                                   Achnanthes borealis f. baicalensis
                                             Achnanthes boudoui
                                             Achnanthes bourginii
                                             Achnanthes boyeri
                                             Achnanthes brachypus
                                             Achnanthes brasiliensis
                                             Achnanthes breenii
                                             Achnanthes brevicostata
                                             Achnanthes brevipes
                                                   [Achnantella brevipes]
                                                   Achnanthes brevipes f. gaussii
                                                   Achnanthes brevipes f. rostrata
                                                   Achnanthes brevipes f. trigona
                                               Achnanthes brevipes var. angustata
                                               Achnanthes brevipes var. arctica
                                               Achnanthes brevipes var. bacillaris
                                               Achnanthes brevipes var. brevipes
                                               Achnanthes brevipes var. capensis
                                               Achnanthes brevipes var. constricta
                                               Achnanthes brevipes var. contracts
                                               Achnanthes brevipes var. indica
                                               Achnanthes brevipes var. intermedia
                                                     [Achnanthes intermedia]
                                               Achnanthes brevipes var. japonica
                                               Achnanthes brevipes var. lata
                                               Achnanthes brevipes var. laudugari
                                               Achnanthes brevipes var. line
                                               Achnanthes brevipes var. linearis
                                               Achnanthes brevipes var. marginata
                                               Achnanthes brevipes var. marina
                                               Achnanthes brevipes var. neogenica
                                               Achnanthes brevipes var. pennaeformis
                                               Achnanthes brevipes var. salinarum
                                               Achnanthes brevipes var. seriata
                                               Achnanthes brevipes var. solcaensis
                                               Achnanthes brevipes var. subcrenulata
                                               Achnanthes brevipes var. tumida
                                               Achnanthes brevipes var. typica
                                             Achnanthes breweri
                                             Achnanthes brockmannii
                                             Achnanthes broonlundensis
                                             Achnanthes brunii
                                             Achnanthes bruunii
                                             Achnanthes buccola
                                             Achnanthes buccula
                                             Achnanthes calcar
                                                   Achnanthes calcar f. baicalensis
                                               Achnanthes calcar var. australis
                                               Achnanthes calcar var. pulcherrima
                                             Achnanthes calcaroides
                                             Achnanthes calear
                                               Achnanthes calear var. pulcherrima
                                             Achnanthes campechiana
                                             Achnanthes campylopus
                                             Achnanthes capensis
                                               Achnanthes capensis var. multiarticulata
                                             Achnanthes capitata
                                             Achnanthes capitellata
                                             Achnanthes carmichaelii
                                             Achnanthes cataractarum
                                             Achnanthes ceramii
                                             Achnanthes charcotii
                                             Achnanthes chilensis
                                               Achnanthes chilensis var. subaequalis
                                             Achnanthes chlidanos
                                                   [Achnanthidium chlidanos]
                                                   [Psammothidium chlidanos]
                                             Achnanthes cincta
                                             Achnanthes citronella
                                                   [Cocconeis citronella]
                                             Achnanthes clara
                                             Achnanthes clavata
                                             Achnanthes clevei
                                                   Achnanthes clevei f. rostrata
                                               Achnanthes clevei var. balcanica
                                               Achnanthes clevei var. clevei
                                               Achnanthes clevei var. nipponica
                                               Achnanthes clevei var. rostrata
                                                     [Achnanthidium clevei var. rostratum]
                                                     [Karayevia clevei var. rostrata]
                                             Achnanthes coarctata
                                                   Achnanthes coarctata f. antarctica
                                                   Achnanthes coarctata f. falklandica
                                               Achnanthes coarctata var. constricta
                                               Achnanthes coarctata var. distorta
                                               Achnanthes coarctata var. elineata
                                               Achnanthes coarctata var. elliptica
                                               Achnanthes coarctata var. parallels
                                               Achnanthes coarctata var. rhomboidea
                                               Achnanthes coarctata var. sinaensis
                                             Achnanthes cocconeiformis
                                             Achnanthes cocconeioides
                                             Achnanthes cogitata
                                             Achnanthes cognita
                                             Achnanthes compacta
                                             Achnanthes confusa
                                             Achnanthes congolensis
                                             Achnanthes conspicua
                                               Achnanthes conspicua var. brevistriata
                                               Achnanthes conspicua var. conspicua
                                             Achnanthes convergens
                                             Achnanthes corrputa
                                             Achnanthes corrupta
                                             Achnanthes costata
                                             Achnanthes costatus
                                             Achnanthes cotteriensis
                                             Achnanthes crassa
                                                   [Achnanthes pusilla var. crassa]
                                               Achnanthes crassa var. elliptica
                                             Achnanthes crenulata
                                               Achnanthes crenulata var. arcuate
                                               Achnanthes crenulata var. confusa
                                               Achnanthes crenulata var. constrica
                                               Achnanthes crenulata var. elliptica
                                               Achnanthes crenulata var. linearis
                                             Achnanthes cristata
                                             Achnanthes crosbyana
                                             Achnanthes crucifera
                                               Achnanthes crucifera var. capitata
                                             Achnanthes cuneata
                                             Achnanthes curta
                                                   [Pinnularia curta]
                                             Achnanthes curvata
                                             Achnanthes curvirostrum
                                             Achnanthes cyclophora
                                             Achnanthes danica
                                               Achnanthes danica var. major
                                               Achnanthes danica var. maxima
                                               Achnanthes danica var. schulzii
                                             Achnanthes danicoides
                                             Achnanthes daui
                                               Achnanthes daui var. alaskaensis
                                             Achnanthes debilissima
                                             Achnanthes decipiens
                                             Achnanthes deflexa
                                               Achnanthes deflexa var. alpestris
                                             Achnanthes delicatissima
                                             Achnanthes delicatula
                                                   Achnanthes delicatula f. angustata
                                               Achnanthes delicatula subsp. engelbrechtii
                                                     [Achnantheiopsis engelbrechtii]
                                                     [Achnanthes engelbrechtii]
                                               Achnanthes delicatula subsp. septentrionalis
                                                     [Achnanthes rhombica]
                                               Achnanthes delicatula var. australis
                                               Achnanthes delicatula var. magellanica
                                               Achnanthes delicatula var. pacia
                                             Achnanthes delpiroui
                                             Achnanthes densestriata
                                             Achnanthes depresea
                                               Achnanthes depresea var. lanceolata
                                             Achnanthes depressa
                                             Achnanthes desperata
                                             Achnanthes diaper
                                               Achnanthes diaper var. capitata
                                             Achnanthes didyma
                                                   [Psammothidium didymum]
                                                   Achnanthes didyma f. didyma
                                             Achnanthes dimorphostriata
                                             Achnanthes dimorphs
                                             Achnanthes diplopunctata
                                             Achnanthes dispar
                                               Achnanthes dispar var. angulata
                                               Achnanthes dispar var. angustissima
                                               Achnanthes dispar var. capitata
                                               Achnanthes dispar var. fontellii
                                               Achnanthes dispar var. lanceolata
                                             Achnanthes distorta
                                             Achnanthes divergens
                                             Achnanthes dornii
                                             Achnanthes dorogostaiskii
                                             Achnanthes dubia
                                             Achnanthes elata
                                                   [Achnanthes inflata var. elata]
                                               Achnanthes elata var. curvula
                                             Achnanthes elegans
                                             Achnanthes elliptica
                                                   Achnanthes elliptica f. ikpikpukensis
                                               Achnanthes elliptica var. elongata
                                               Achnanthes elliptica var. rostrata
                                             Achnanthes entrancensis
                                             Achnanthes ercuate
                                             Achnanthes erdmannensis
                                             Achnanthes exigua
                                                   [Achnanthes exigua var. constricta]
                                                   Achnanthes exigua f. angustirostrata
                                                   Achnanthes exigua f. semiaperta
                                                   Achnanthes exigua f. subcapitata
                                               Achnanthes exigua var. angustirostrata
                                               Achnanthes exigua var. baicalensis
                                               Achnanthes exigua var. baikalensis
                                               Achnanthes exigua var. capitata
                                               Achnanthes exigua var. elliptica
                                               Achnanthes exigua var. heterovalva
                                               Achnanthes exigua var. indica
                                               Achnanthes exigua var. nipponica
                                               Achnanthes exigua var. siamense
                                               Achnanthes exigua var. staurophora
                                               Achnanthes exigua var. yabeana
                                             Achnanthes exiguiformis
                                             Achnanthes exiguoides
                                             Achnanthes exilioides
                                             Achnanthes exilis
                                               Achnanthes exilis var. minutissima
                                             Achnanthes exiloides
                                             Achnanthes expecta
                                             Achnanthes expressa
                                             Achnanthes fasciata
                                             Achnanthes fimbriata
                                                   [Achnanthes mamifera]
                                                   [Achnanthes stroemii]
                                                   [Schizostauron fimbriatum]
                                             Achnanthes flahaultii
                                             Achnanthes flathukensis
                                             Achnanthes flexella
                                               Achnanthes flexella var. alpestris
                                               Achnanthes flexella var. arctica
                                             Achnanthes fluviatilis
                                             Achnanthes fogedii
                                             Achnanthes folliotii
                                             Achnanthes fontana
                                             Achnanthes fossilis
                                             Achnanthes fragilis
                                             Achnanthes frequentissima
                                             Achnanthes frigida
                                             Achnanthes fugei
                                             Achnanthes fugeii
                                             Achnanthes fukiensis
                                             Achnanthes gainii
                                             Achnanthes gamma
                                               Achnanthes gamma var. rectilineata
                                             Achnanthes genuflexa
                                             Achnanthes georgica
                                             Achnanthes germainii
                                             Achnanthes gibbosa
                                             Achnanthes glabrata
                                               Achnanthes glabrata var. auklandica
                                             Achnanthes gondwana
                                             Achnanthes gracillima
                                               Achnanthes gracillima var. nipponica
                                             Achnanthes granii
                                             Achnanthes gregoriana
                                             Achnanthes grimmii
                                             Achnanthes groenlandica
                                                   [Achnanthidium groenlandicum]
                                                   Achnanthes groenlandica f. jaydei
                                               Achnanthes groenlandica var. phinneyi
                                             Achnanthes grunowii
                                             Achnanthes hallandica
                                             Achnanthes hankensis
                                             Achnanthes hardingensis
                                             Achnanthes harrisonii
                                             Achnanthes harveyi
                                             Achnanthes hasta
                                             Achnanthes hastata
                                             Achnanthes hateromorpha
                                             Achnanthes hauckiana
                                                   Achnanthes hauckiana f. fossilis
                                                   Achnanthes hauckiana f. nipponica
                                                   Achnanthes hauckiana f. rhombica
                                               Achnanthes hauckiana var. densistriata
                                               Achnanthes hauckiana var. nipponica
                                             Achnanthes hauckii
                                             Achnanthes haynaldii
                                               Achnanthes haynaldii var. elliptico
                                               Achnanthes haynaldii var. elliptico-lanceolata
                                               Achnanthes haynaldii var. intermedia
                                               Achnanthes haynaldii var. oblongo-elliptica
                                               Achnanthes haynaldii var. vulgaris
                                             Achnanthes hedini
                                             Achnanthes hedinii
                                             Achnanthes heidenii
                                             Achnanthes helvetica
                                               Achnanthes helvetica var. alpina
                                               Achnanthes helvetica var. minor
                                             Achnanthes herteri
                                             Achnanthes hetaromorpha
                                               Achnanthes hetaromorpha var. binotata
                                             Achnanthes heterostriata
                                             Achnanthes heterostriatoides
                                             Achnanthes hettensis
                                             Achnanthes hexagona
                                             Achnanthes hilliardii
                                             Achnanthes himalayensis
                                             Achnanthes holmquistii
                                             Achnanthes holostatica
                                             Achnanthes holsatica
                                             Achnanthes holsetica
                                             Achnanthes holstii
                                                   Achnanthes holstii f. cuneiformis
                                               Achnanthes holstii var. celtica
                                             Achnanthes hudsonis
                                             Achnanthes hungarica
                                                   Achnanthes hungarica f. constricta
                                                   Achnanthes hungarica f. polygonata
                                                   Achnanthes hungarica f. semicruciata
                                               Achnanthes hungarica var. andicola
                                               Achnanthes hungarica var. brevis
                                               Achnanthes hungarica var. jamalinensis
                                               Achnanthes hungarica var. linearis
                                               Achnanthes hungarica var. miramaris
                                               Achnanthes hungarica var. rivularis
                                               Achnanthes hungarica var. rumelica
                                               Achnanthes hungarica var. tropica
                                             Achnanthes hyperboreoides
                                             Achnanthes hyperbotea
                                             Achnanthes imperfecta
                                                   [Navicula concava]
                                                   [Navicula keeleyi]
                                                   [Navicula pennsylvanica]
                                                   [Navicula poconoensis]
                                             Achnanthes impexa
                                             Achnanthes inaequalis
                                             Achnanthes incognita
                                             Achnanthes indica
                                             Achnanthes inflata
                                                   [Achnanthidium inflatum]
                                                   [Stauroneis inflata]
                                                   Achnanthes inflata f. elatoides
                                                   Achnanthes inflata f. subcostata
                                                   Achnanthes inflata f. vidarbhensis
                                               Achnanthes inflata var. gibba
                                               Achnanthes inflata var. javanica
                                               Achnanthes inflata var. sigmata
                                               Achnanthes inflata var. sinica
                                               Achnanthes inflata var. smithiana
                                             Achnanthes inflatagrandis
                                             Achnanthes ingratifomis
                                             Achnanthes ingratiformis
                                             Achnanthes inopinata
                                             Achnanthes interrupta
                                             Achnanthes investians
                                             Achnanthes investiens
                                             Achnanthes iritermeclia
                                             Achnanthes islandica
                                             Achnanthes iversenii
                                             Achnanthes jacksonii
                                             Achnanthes jacobii
                                             Achnanthes jakovljavici
                                             Achnanthes jamalinensis
                                             Achnanthes japonica
                                             Achnanthes javanica
                                               Achnanthes javanica var. bengalensis
                                               Achnanthes javanica var. rhombica
                                               Achnanthes javanica var. subconstricta
                                               Achnanthes javanica var. subventricosa
                                               Achnanthes javanica var. tenuistauros
                                             Achnanthes jeniseyensis
                                               Achnanthes jeniseyensis var. undulata
                                             Achnanthes jentzschi
                                             Achnanthes jogensis
                                             Achnanthes johncarteri
                                             Achnanthes jourseconse
                                             Achnanthes juriljii
                                             Achnanthes kamczatica
                                             Achnanthes karelica
                                             Achnanthes kerguelenensis
                                             Achnanthes kizaki
                                             Achnanthes koenigii
                                             Achnanthes koshovii
                                             Achnanthes kriageri
                                             Achnanthes kryophila
                                               Achnanthes kryophila var. densistriata
                                               Achnanthes kryophila var. kryophila
                                               Achnanthes kryophila var. sublinearis
                                             Achnanthes kryophiloides
                                             Achnanthes kuelbsii
                                             Achnanthes kuolansis
                                             Achnanthes kuwaitensis
                                             Achnanthes lacunarum
                                               Achnanthes lacunarum var. fonticola
                                             Achnanthes lacunicola
                                             Achnanthes lacus
                                             Achnanthes lacus-baicali
                                             Achnanthes laevis
                                               Achnanthes laevis var. aratasii
                                               Achnanthes laevis var. austriaca
                                               Achnanthes laevis var. diluviana
                                                     [Achnanthes diluviana]
                                               Achnanthes laevis var. ninckei
                                             Achnanthes lanceolata
                                                   Achnanthes lanceolata f. baicalensis
                                                   Achnanthes lanceolata f. capitata
                                                   Achnanthes lanceolata f. diminuta
                                                   Achnanthes lanceolata f. elliptica
                                                   Achnanthes lanceolata f. elongata
                                                   Achnanthes lanceolata f. minor
                                                   Achnanthes lanceolata f. parallela
                                                   Achnanthes lanceolata f. pura
                                                   Achnanthes lanceolata f. rhombica
                                                   Achnanthes lanceolata f. semipura
                                                   Achnanthes lanceolata f. ventricosa
                                               Achnanthes lanceolata subsp. polymorpha
                                               Achnanthes lanceolata subsp. robusta
                                                     [Achnantheiopsis robustior]
                                                     [Achnanthes lanceolata var. robusta]
                                                     [Planothidium lanceolatum subsp. robusta]
                                                     [Planothidium robustius]
                                               Achnanthes lanceolata var. abbreviata
                                                     [Achnanthes plana]
                                               Achnanthes lanceolata var. abbreviate
                                               Achnanthes lanceolata var. amissa
                                               Achnanthes lanceolata var. baicalansis
                                               Achnanthes lanceolata var. baicalensis
                                               Achnanthes lanceolata var. bimaculata
                                               Achnanthes lanceolata var. boyei
                                                     [Achnanthes boyei]
                                               Achnanthes lanceolata var. brasiliensis
                                               Achnanthes lanceolata var. capitata
                                               Achnanthes lanceolata var. crosse
                                               Achnanthes lanceolata var. faeroensis
                                               Achnanthes lanceolata var. fennica
                                               Achnanthes lanceolata var. frequentissima
                                               Achnanthes lanceolata var. intermedia
                                               Achnanthes lanceolata var. laterirostrata
                                               Achnanthes lanceolata var. maxima
                                               Achnanthes lanceolata var. minor
                                                     [Achnantheiopsis frequentissima var. minor]
                                                     [Achnanthes elliptica var. minor]
                                                     [Achnanthes rostrata var. minor]
                                                     [Planothidium frequentissimum var. minus]
                                               Achnanthes lanceolata var. minuta
                                               Achnanthes lanceolata var. nipponica
                                               Achnanthes lanceolata var. ovalis
                                               Achnanthes lanceolata var. ovelis
                                               Achnanthes lanceolata var. perpusilla
                                               Achnanthes lanceolata var. rostrata
                                               Achnanthes lanceolata var. rostratiformis
                                               Achnanthes lanceolata var. rusticum
                                               Achnanthes lanceolata var. subinflata
                                               Achnanthes lanceolata var. tenuis
                                             Achnanthes lanceolata-lanceolata
                                               Achnanthes lanceolata-lanceolata var. elliptico
                                             Achnanthes lanceolatum
                                             Achnanthes lancettula
                                             Achnanthes lapidosa
                                                   Achnanthes lapidosa f. chilensis
                                                   Achnanthes lapidosa f. producta
                                               Achnanthes lapidosa var. appalachiana
                                               Achnanthes lapidosa var. chilensis
                                               Achnanthes lapidosa var. chiliensis
                                               Achnanthes lapidosa var. elliptica
                                               Achnanthes lapidosa var. lanceolata
                                               Achnanthes lapidosa var. producta
                                               Achnanthes lapidosa var. rostrata
                                               Achnanthes lapidosa var. subrostrata
                                             Achnanthes lapponica
                                                   Achnanthes lapponica f. rostrata
                                               Achnanthes lapponica var. fennica
                                             Achnanthes larsenii
                                             Achnanthes lata
                                             Achnanthes laterostrata
                                               Achnanthes laterostrata var. lanceolata
                                             Achnanthes latestriata
                                             Achnanthes latissima
                                             Achnanthes lecohui
                                             Achnanthes leiblainii
                                             Achnanthes lemmermannii
                                               Achnanthes lemmermannii var. lineata
                                               Achnanthes lemmermannii var. obtusa
                                               Achnanthes lemmermannii var. subcapitata
                                             Achnanthes leonardii
                                             Achnanthes leontopithecus-rosalia
                                             Achnanthes lesothensis
                                             Achnanthes leudugeri
                                             Achnanthes levoillae
                                             Achnanthes ligeriana
                                             Achnanthes lineariformis
                                             Achnanthes linearis
                                                   Achnanthes linearis f. exilis
                                                   Achnanthes linearis f. minuta
                                               Achnanthes linearis var. nipponica
                                               Achnanthes linearis var. pusilla
                                               Achnanthes linearis var. subcapitata
                                             Achnanthes linkei
                                                   Achnanthes linkei f. minor
                                             Achnanthes lintonensis
                                             Achnanthes loczyi
                                             Achnanthes longipes
                                                   Achnanthes longipes f. elliptica
                                                   Achnanthes longipes f. major
                                                   Achnanthes longipes f. minor
                                               Achnanthes longipes var. carmichaelii
                                               Achnanthes longipes var. fossilis
                                             Achnanthes looseri
                                               Achnanthes looseri var. lanceolata
                                             Achnanthes lorenziana
                                               Achnanthes lorenziana var. capitata
                                             Achnanthes lucana
                                             Achnanthes lutheri
                                             Achnanthes lyrata
                                             Achnanthes lyroides
                                             Achnanthes macquariensis
                                             Achnanthes macropus
                                             Achnanthes maculata
                                             Achnanthes maewensis
                                             Achnanthes mammalis
                                               Achnanthes mammalis var. reticulata
                                             Achnanthes manguinii
                                               Achnanthes manguinii var. elliptica
                                             Achnanthes manifera
                                             Achnanthes mansiensis
                                             Achnanthes maranda
                                             Achnanthes margaritaceum
                                             Achnanthes margaritarum
                                             Achnanthes marginalis
                                             Achnanthes marginestriata
                                             Achnanthes marginulata
                                                   [Psammothidium marginulatum]
                                                   Achnanthes marginulata f. major
                                             Achnanthes marraitanais
                                             Achnanthes martyi
                                             Achnanthes maxima
                                             Achnanthes medioconvexa
                                             Achnanthes mercurii
                                             Achnanthes mercuryi
                                             Achnanthes mesoconstricta
                                             Achnanthes mesogongyla
                                             Achnanthes metakryophila
                                             Achnanthes meyeri
                                             Achnanthes meyerii
                                             Achnanthes mica
                                             Achnanthes microcephela
                                                   Achnanthes microcephela f. magna
                                             Achnanthes minima
                                             Achnanthes minuscula
                                             Achnanthes minutissima
                                                   Achnanthes minutissima f. inconspicua
                                               Achnanthes minutissima var. capitata
                                               Achnanthes minutissima var. gracillima
                                               Achnanthes minutissima var. inconspicua
                                                     [Achnanthes strenzkei]
                                                     [Navicula strenzkei]
                                               Achnanthes minutissima var. macrocephala
                                               Achnanthes minutissima var. subrobusta
                                             Achnanthes mirabilis
                                             Achnanthes misionera
                                             Achnanthes modesta
                                             Achnanthes modestiforme
                                             Achnanthes modestiformis
                                             Achnanthes mollis
                                             Achnanthes monela
                                             Achnanthes montana
                                               Achnanthes montana var. norvegica
                                               Achnanthes montana var. tropica
                                             Achnanthes muelleri
                                             Achnanthes multiarticulata
                                             Achnanthes muscorum
                                               Achnanthes muscorum var. minor
                                             Achnanthes nagpurensis
                                             Achnanthes namae
                                             Achnanthes nana
                                             Achnanthes nathorsti
                                             Achnanthes nathorstii
                                             Achnanthes natrata
                                             Achnanthes navalis
                                             Achnanthes naviformis
                                             Achnanthes neocaledonica
                                             Achnanthes nitida
                                             Achnanthes nitidiformis
                                             Achnanthes nivellis
                                             Achnanthes nobile
                                             Achnanthes nodeana
                                             Achnanthes nolli
                                             Achnanthes nollii
                                             Achnanthes norvegica
                                             Achnanthes obliqua
                                                   [Stauroneis obliqua]
                                                   Achnanthes obliqua f. maioi
                                             Achnanthes oblonga
                                             Achnanthes obscura
                                                   [Navicula brevicostata var. obscura]
                                             Achnanthes obtusa
                                             Achnanthes ocellata
                                             Achnanthes octalterna
                                             Achnanthes oculata
                                                   Achnanthes oculata f. rostrata
                                             Achnanthes oestrupi
                                               Achnanthes oestrupi var. lanceolata
                                             Achnanthes oestrupii
                                               Achnanthes oestrupii var. Ininuta
                                               Achnanthes oestrupii var. aperta
                                                     [Achnanthes aperta]
                                               Achnanthes oestrupii var. bicapitata
                                               Achnanthes oestrupii var. nipponica
                                               Achnanthes oestrupii var. rostrata
                                             Achnanthes okamurae
                                             Achnanthes okunoi
                                             Achnanthes onegensis
                                             Achnanthes oregonensis
                                             Achnanthes orellana
                                             Achnanthes ostenii
                                               Achnanthes ostenii var. mesogongyla
                                               Achnanthes ostenii var. parva
                                             Achnanthes paIustris
                                             Achnanthes pachypus
                                               Achnanthes pachypus var. genuflexa
                                             Achnanthes pagesii
                                             Achnanthes pamirensis
                                             Achnanthes pannata
                                             Achnanthes pantocsekii
                                             Achnanthes paradoxa
                                             Achnanthes paragalli
                                               Achnanthes paragalli var. lanceolata
                                             Achnanthes parexigua
                                             Achnanthes parvula
                                                   [Achnanthes brevipes var. parvula]
                                                   [Achnanthidium brevipes var. parvulum]
                                             Achnanthes pelts
                                             Achnanthes pennaeformis
                                             Achnanthes peragalloi
                                                   Achnanthes peragalloi f. borealis
                                               Achnanthes peragalloi var. Heribaud
                                             Achnanthes peragalloi 'peragalli'
                                               Achnanthes peragalloi 'peragalli' var. parvula
                                                     [Achnanthes oestrupii var. parvula]
                                             Achnanthes percava
                                             Achnanthes perfida
                                             Achnanthes perminuta
                                             Achnanthes perturba
                                             Achnanthes petitii
                                             Achnanthes philippinica
                                             Achnanthes pinnata
                                               Achnanthes pinnata var. japonica
                                             Achnanthes pirogueana
                                                   Achnanthes pirogueana f. capitata
                                             Achnanthes plitvicansis
                                             Achnanthes plitvicensis
                                             Achnanthes plšnensis
                                             Achnanthes poeudolinearis
                                             Achnanthes polaris
                                             Achnanthes polynesiaca
                                             Achnanthes poretzkii
                                               Achnanthes poretzkii var. gracilis
                                             Achnanthes portae
                                             Achnanthes prava
                                             Achnanthes profunda
                                             Achnanthes prorunda
                                             Achnanthes pseudincognita
                                             Achnanthes pseudo-obliqua
                                             Achnanthes pseudoaffinis
                                             Achnanthes pseudoantiqua
                                             Achnanthes pseudobiasolettiana
                                             Achnanthes pseudobliqua
                                             Achnanthes pseudobrevipes
                                             Achnanthes pseudoconica
                                             Achnanthes pseudoconspicua
                                             Achnanthes pseudogrimmei
                                             Achnanthes pseudogroenlandica
                                             Achnanthes pseudohexagona
                                             Achnanthes pseudohungarica
                                             Achnanthes pseudohustedtii
                                             Achnanthes pseudolanceolata
                                             Achnanthes pseudolinearis
                                             Achnanthes pseudopinnata
                                             Achnanthes pseudopunctulata
                                             Achnanthes pseudoseminulum
                                             Achnanthes pseudosuchlandtii
                                             Achnanthes pulchella
                                             Achnanthes pulcherrima
                                             Achnanthes pulviscula
                                             Achnanthes punctata
                                             Achnanthes punctulata
                                             Achnanthes pusilla
                                               Achnanthes pusilla var. procera
                                             Achnanthes pygmaea
                                             Achnanthes pyropa
                                             Achnanthes quadralterna
                                             Achnanthes quadratarea
                                               Achnanthes quadratarea var. fennica
                                             Achnanthes quadrijuga
                                             Achnanthes quadripunctata
                                             Achnanthes radistus
                                             Achnanthes raititita
                                             Achnanthes ramosa
                                             Achnanthes ranomafanensis
                                             Achnanthes rara
                                             Achnanthes rautenbachiae
                                             Achnanthes recava
                                             Achnanthes rechtensis
                                             Achnanthes recurva
                                             Achnanthes reichensis
                                             Achnanthes reidensis
                                             Achnanthes reimeri
                                             Achnanthes renei
                                             Achnanthes reversa
                                             Achnanthes rhomboides
                                             Achnanthes rhynchocephala
                                             Achnanthes ricula
                                             Achnanthes rivularia
                                             Achnanthes rollae
                                             Achnanthes rosenstockii
                                               Achnanthes rosenstockii var. sinepuncta
                                             Achnanthes rostellata
                                             Achnanthes rupestoides
                                             Achnanthes saccula
                                             Achnanthes sacculus
                                             Achnanthes saeptata
                                               Achnanthes saeptata var. doljensis
                                               Achnanthes saeptata var. sussedana
                                             Achnanthes salina
                                             Achnanthes sapinii-jaloustrei
                                             Achnanthes saxatilis
                                             Achnanthes saxophila
                                             Achnanthes schmidtiana
                                               Achnanthes schmidtiana var. tibetica
                                             Achnanthes schmidtii
                                             Achnanthes schoemaniana
                                             Achnanthes scotica
                                             Achnanthes scutiformis
                                               Achnanthes scutiformis var. delicatula
                                             Achnanthes sect
                                             Achnanthes semen
                                             Achnanthes semiaperta
                                             Achnanthes semiaptera
                                             Achnanthes semifasciata
                                             Achnanthes separata
                                             Achnanthes septata
                                             Achnanthes septentrionalis
                                               Achnanthes septentrionalis var. subcapitata
                                             Achnanthes seriata
                                               Achnanthes seriata var. cuneata
                                             Achnanthes siamexilis
                                             Achnanthes siamlinearis
                                             Achnanthes sibayiensis
                                             Achnanthes sigmoides
                                             Achnanthes similis
                                             Achnanthes simivalvata
                                             Achnanthes simplex
                                             Achnanthes skvortzowii
                                             Achnanthes solea
                                             Achnanthes speciosa
                                             Achnanthes sperata
                                             Achnanthes sphacelata
                                             Achnanthes st-paulii
                                             Achnanthes standeri
                                             Achnanthes stauroneiformis
                                             Achnanthes stauroneioides
                                             Achnanthes stolida
                                                   [Navicula stolida]
                                             Achnanthes stomatimorpha
                                             Achnanthes striata
                                               Achnanthes striata var. rostrata
                                             Achnanthes subaffinis
                                               Achnanthes subaffinis var. dudpokharii
                                             Achnanthes subconstricta
                                             Achnanthes subcrassa
                                             Achnanthes subcrenulata
                                             Achnanthes subelata
                                             Achnanthes subexigua
                                             Achnanthes subhudsonis
                                               Achnanthes subhudsonis var. densestriata
                                               Achnanthes subhudsonis var. kraeuselii
                                                     [Achnanthes kraeuselii]
                                             Achnanthes subhyalina
                                             Achnanthes subinflata
                                             Achnanthes sublinearis
                                               Achnanthes sublinearis var. complexa
                                               Achnanthes sublinearis var. elliptica
                                             Achnanthes sublitoralis
                                             Achnanthes submontana
                                             Achnanthes subrostrata
                                               Achnanthes subrostrata var. appalachiana
                                             Achnanthes subsaloides
                                             Achnanthes subsaxonica
                                             Achnanthes subsessilis
                                               Achnanthes subsessilis var. constricta
                                               Achnanthes subsessilis var. enervis
                                               Achnanthes subsessilis var. incurvata
                                               Achnanthes subsessilis var. loczyi
                                               Achnanthes subsessilis var. multiarticulata
                                               Achnanthes subsessilis var. ovalis
                                               Achnanthes subsessilis var. subcrenulata
                                               Achnanthes subsessilis var. subventricosa
                                               Achnanthes subsessilis var. tumidula
                                             Achnanthes subtropica
                                             Achnanthes sumera
                                             Achnanthes suspecta
                                             Achnanthes taeniata
                                                   [Achnanthes hyperborea]
                                                   [Achnanthes taeniata var. hyperborea]
                                               Achnanthes taeniata var. rennellensis
                                             Achnanthes taiaensis
                                             Achnanthes tanansis
                                             Achnanthes tanuissima
                                             Achnanthes taylorensis
                                             Achnanthes temperei
                                                   [Achnanthepyla temperei]
                                             Achnanthes tenera
                                             Achnanthes tenuissima
                                             Achnanthes tenuistauros
                                             Achnanthes tenuistriata
                                             Achnanthes terrae-novae
                                             Achnanthes teshekpukensis
                                             Achnanthes therezienii
                                             Achnanthes thermalis
                                                   [Achnanthes gibberula var. angustior]
                                                   [Achnanthes grimmei var. elliptica]
                                                   [Achnanthes grimmei var. hyalina]
                                                   [Achnanthes grimmei var. inflata]
                                                   [Achnanthes grimmei]
                                                   [Achnanthidium zelleri]
                                               Achnanthes thermalis var. rumrichorum
                                             Achnanthes tibetica
                                             Achnanthes trigibba
                                             Achnanthes trinodis
                                             Achnanthes tuma
                                             Achnanthes turgens
                                             Achnanthes turgida
                                             Achnanthes tylophora
                                             Achnanthes undata
                                             Achnanthes undulata
                                             Achnanthes undulatus
                                             Achnanthes unipunctata
                                             Achnanthes utukakensis
                                             Achnanthes vanhoeffenii
                                             Achnanthes vasta
                                             Achnanthes vaszaryi
                                               Achnanthes vaszaryi var. oregonica
                                             Achnanthes ventralis
                                                   [Achnanthes kryophila var. protracta]
                                                   [Achnanthes sublaevis]
                                                   [Achnanthidium ventralis]
                                               Achnanthes ventralis var. crassa
                                                     [Achnanthes sublaevis var. crassa]
                                             Achnanthes ventraloconfusa
                                                   Achnanthes ventraloconfusa f. simplex
                                             Achnanthes ventricosa
                                             Achnanthes vernalis
                                             Achnanthes vexillum
                                             Achnanthes vicentii
                                                   [Achnanthes vicentii var. naviculacae]
                                             Achnanthes vistulana
                                             Achnanthes wellsiae
                                                   [Astartiella wellsiae]
                                             Achnanthes wellsii
                                             Achnanthes wolffii
                                             Achnanthes woltereckii
                                               Achnanthes woltereckii var. africana
                                               Achnanthes woltereckii var. swazilandica
                                             Achnanthes woodlawnensis
                                             Achnanthes wrightiana
                                             Achnanthes yabe
                                             Achnanthes yaquinensis
                                             Achnanthes yeniseyensis
                                             Achnanthes ziegleri
                                     Amphicocconeis
                                             Amphicocconeis debesii
                                             Amphicocconeis disculoides
                                                   [Cocconeis disculoides]
                                     Platessa
                                             Platessa bavarica
                                             Platessa holsatica
                                             Platessa montana
                                             Platessa rupestris
                                                   [Achnanthes rupestris]