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| Actinella brasiliensis Grunow in Van Heurck 1881 |
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| Actinella guianensis Grunow in Van Heurck 1881 |
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| Actinella mirabilis Grunow in Van Heurck 1881 |
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| Ardissonea crystallina var. smithii Grunow in Van Heurck 1881 |
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| Asterionella formosa var. gracillima (Hantzsch in Rabenhorst) Grunow in Van Heurck 1881 |
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| Asterionella formosa var. inflata (Heiberg) Grunow in Van Heurck 1881 |
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| Asterionella formosa var. inflata Grunow in Van Heurck 1881 |
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| Asterionella formosa var. ralfsii (W. Smith) Grunow in Van Heurck 1881 |
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| Asterionella formosa var. subtilis Grunow in Van Heurck 1881 |
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| Asterionella formosa var. subtilissima Grunow in Van Heurck 1881 |
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| Asterionella notata (Grunow) Grunow in Van Heurck 1881 |
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| Campylosira cymbelliformis (Schmidt) Grunow in Van Heurck 1881 |
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| Cyclophora tenuis var. tropica Grunow in Van Heurck 1881 |
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| Cymatopleura elliptica var. hibernica (W. Smith) Van Heurck 1881 |
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| Cymatopleura elliptica f. subconstricta Van Heurck 1881 |
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| Cymatopleura solea Van Heurck 1881 |
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| Cymatosira belgica Grunow in Van Heurck 1881 |
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| Cymbella lanceolata (Agardh) Van Heurck 1881 |
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| Denticula elegans var. cyprica Grunow in Van Heurck 1881 |
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| Denticula elegans var. kittoniana Grunow in Van Heurck 1881 |
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| Denticula elegans var. thermalis (Kützing) Grunow in Van Heurck 1881 |
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| Denticula indica Grunow in Van Heurck 1881 |
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| Denticula kittoniana Grunow in Van Heurck 1881 |
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| Denticula lauta Grunow in Van Heurck 1881 |
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| Denticula tenuis var. bicuneata Grunow in Van Heurck 1881 |
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| Denticula tenuis var. frigida (Kützing) Grunow in Van Heurck 1881 |
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| Denticula tenuis var. frigida Grunow in Van Heurck 1881 |
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| Denticula tenuis var. genuina Grunow in Van Heurck 1881 |
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| Denticula tenuis var. inflata (W. Smith) Grunow in Van Heurck 1881 |
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| Denticula tenuis var. intermedia Grunow in Van Heurck 1881 |
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| Denticula tenuis var. mesolepta Grunow in Van Heurck 1881 |
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| Denticula valida (Pedicino) Grunow in Van Heurck 1881 |
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| Denticula valida f. major Grunow in Van Heurck 1881 |
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| Denticula valida f. minor Grunow in Van Heurck 1881 |
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| Diatoma hiemale var. mesodon (Ehrenberg) Van Heurck 1881 |
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| Diatoma pectinale Van Heurck 1881 |
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| Diatoma pectinale Van Heurck 1881 |
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| Diatoma tenue var. densestriata Grunow in Van Heurck 1881 |
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| Diatoma tenue var. elongata Van Heurck 1881 |
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| Diatoma tenue var. elongatum Grunow in Van Heurck 1881 |
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| Diatoma tenue var. hybrida Grunow in Van Heurck 1881 |
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| Diatoma tenue var. pachycephala (pachycephalum) Grunow in Van Heurck 1881 |
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| Diatoma vulgare var. constricta (constrictum) Grunow in Van Heurck 1881 |
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| Diatoma vulgare var. linearis Grunow in Van Heurck 1881 |
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| Diatoma vulgare var. linearis W. Smith in Van Heurck 1881 |
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| Dimeregramma (Dimerogramma) dubium (Grunow) Grunow in Van Heurck 1881 |
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| Dimeregramma (Dimerogramma) fulvum var. furcigerum Grunow in Van Heurck 1881 |
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| Dimeregramma (Dimerogramma) furcigerum Grunow in Van Heurck 1881 |
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| Dimeregramma (Dimerogramma) nanum (nana) var. minima Grunow in Van Heurck 1881 |
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| Dimeregramma (Dimerogramma) nanum (nana) var. parva Grunow in Van Heurck 1881 |
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| Dimeregramma (Dimerogramma) surirella var. australis (Petit) Grunow in Van Heurck 1881 |
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| Epithemia sorex f. sporangiale Van Heurck 1881 |
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| Epithemia sorex f. sporangiale Van Heurck 1881 |
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| Epithemia zebra f. minores Van Heurck 1881 |
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| Eunotia arcus var. bidens Grunow in Van Heurck 1881 |
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| Eunotia arcus var. hybrida Grunow in Van Heurck 1881 |
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| Eunotia arcus var. minor Grunow in Van Heurck 1881 |
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| Eunotia arcus var. tenella Grunow in Van Heurck 1881 |
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| Eunotia arcus var. uncinata (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia auriculata Grunow in Van Heurck 1881 |
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| Eunotia bicapitata Grunow in Van Heurck 1881 |
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| Eunotia bigibba var. herkiniensis Grunow in Van Heurck 1881 |
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| Eunotia bigibba var. pumila Grunow in Van Heurck 1881 |
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| Eunotia denticula (Brébisson) Grunow in Van Heurck 1881 |
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| Eunotia denticula Grunow in Van Heurck 1881 |
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| Eunotia diodon var. diminuta Grunow in Van Heurck 1881 |
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| Eunotia diodon f. minor Grunow in Van Heurck 1881 |
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| Eunotia exigua var. nymanniana Grunow in Van Heurck 1881 |
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| Eunotia exigua var. nymanniana Grunow in Van Heurck 1881 |
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| Eunotia exigua var. paludosa Grunow in Van Heurck 1881 |
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| Eunotia exigua var. vix diversa (vixdiversa) Van Heurck 1881 |
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| Eunotia faba (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia faba (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia flexuosa var. bicapitata Grunow in Van Heurck 1881 |
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| Eunotia flexuosa var. eurycephala Grunow in Van Heurck 1881 |
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| Eunotia flexuosa var. pachycephala Grunow in Van Heurck 1881 |
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| Eunotia gibbosa Grunow in Van Heurck 1881 |
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| Eunotia herkiniensis Grunow in Van Heurck 1881 |
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| Eunotia impressa var. angusta Grunow in Van Heurck 1881 |
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| Eunotia impressa var. angusta Van Heurck 1881 |
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| Eunotia incisa Gregory ex Grunow in Van Heurck 1881 |
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| Eunotia incisa var. obtusa Grunow in Van Heurck 1881 |
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| Eunotia incisa var. obtusiuscula Grunow in Van Heurck 1881 |
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| Eunotia lunaris (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia lunaris Grunow in Van Heurck 1881 |
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| Eunotia lunaris var. alpina (Naegeli in Kutzing) Grunow in Van Heurck 1881 |
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| Eunotia lunaris var. bilunaris (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia lunaris var. excisa Grunow in Van Heurck 1881 |
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| Eunotia lunaris f. major Grunow in Van Heurck 1881 |
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| Eunotia lunaris var. subarcuata (Naegeli in Kutzing) Grunow in Van Heurck 1881 |
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| Eunotia minor (Kützing) Grunow in Van Heurck 1881 |
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| Eunotia monodon f. curta Grunow in Van Heurck 1881 |
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| Eunotia nymanniana Grunow in Van Heurck 1881 |
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| Eunotia nymanniana Grunow in Van Heurck 1881 |
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| Eunotia nymanniana Grunow in Van Heurck 1881 |
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| Eunotia parallela f. angustior Grunow in Van Heurck 1881 |
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| Eunotia pectinalis var. biconstricta Grunow in Van Heurck 1881 |
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| Eunotia pectinalis f. curta Van Heurck 1881 |
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| Eunotia pectinalis f. elongata Van Heurck 1881 |
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| Eunotia pectinalis var. ventricosa (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia perpusilla Grunow in Van Heurck 1881 |
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| Eunotia polyglyphis Grunow in Van Heurck 1881 |
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| Eunotia polyglyphis var. hexaglyphis (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia polyglyphis var. pentaglyphis (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia polyglyphis var. tetraglyphis (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia praerupta var. bigibba (Kützing) Grunow in Van Heurck 1881 |
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| Eunotia praerupta f. compacta Grunow in Van Heurck 1881 |
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| Eunotia praerupta f. compacta Grunow in Van Heurck 1881 |
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| Eunotia praerupta var. curta Grunow in Van Heurck 1881 |
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| Eunotia praerupta f. curta Grunow in Van Heurck 1881 |
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| Eunotia praerupta f. curta Grunow in Van Heurck 1881 |
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| Eunotia praerupta var. genuina Grunow in Van Heurck 1881 |
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| Eunotia praerupta var. inflata Grunow in Van Heurck 1881 |
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| Eunotia praerupta f. minor Grunow in Van Heurck 1881 |
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| Eunotia rabenhorstii Cleve & Grunow in Van Heurck 1881 |
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| Eunotia rabenhorstii var. monodon Cleve & Grunow in Van Heurck 1881 |
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| Eunotia rabenhorstii var. triodon Cleve & Grunow in Van Heurck 1881 |
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| Eunotia robusta var. hendecaodon (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia robusta var. papilio (Ehrenberg) Grunow in Van Heurck 1881 |
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| Eunotia tridentula var. perminuta Grunow in Van Heurck 1881 |
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| Eunotia tridentula var. perminuta Van Heurck 1881 |
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| Eunotia tridentula var. perpusilla Grunow in Van Heurck 1881 |
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| Fragilaria (mutabilis var.?) var. elliptica-fae-minores Van Heurck 1881 |
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| Fragilaria bidens f. major Grunow in Van Heurck 1881 |
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| Fragilaria bidens f. minor Grunow in Van Heurck 1881 |
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| Fragilaria brevistriata var. (mutabilis) lapponica Grunow in Van Heurck 1881 |
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| Fragilaria brevistriata var. lapponica Grunow in Van Heurck 1881 |
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| Fragilaria brevistriata var. mormorum Grunow in Van Heurck 1881 |
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| Fragilaria brevistriata var. mutabilis Grunow in Van Heurck 1881 |
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| Fragilaria brevistriata var. pusilla Grunow in Van Heurck 1881 |
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| Fragilaria brevistriata var. subacuta Grunow in Van Heurck 1881 |
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| Fragilaria brevistriata var. subcapitata Grunow in Van Heurck 1881 |
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| Fragilaria californica Grunow in Van Heurck 1881 |
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| Fragilaria capucina var. acuminata Grunow in Van Heurck 1881 |
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| Fragilaria capucina var. lanceolata Grunow in Van Heurck 1881 |
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| Fragilaria capucina var. major W. Smith in Van Heurck 1881 |
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| Fragilaria construens var. pumila Grunow in Van Heurck 1881 |
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| Fragilaria construens var. venter (Ehrenberg) Grunow in Van Heurck 1881 |
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| Fragilaria elliptica f. minores (minor) Grunow in Van Heurck 1881 |
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| Fragilaria intermedia (Grunow) Grunow in Van Heurck 1881 |
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| Fragilaria ischaboensis Grunow in Van Heurck 1881 |
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| Fragilaria islandica Grunow in Van Heurck 1881 |
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| Fragilaria lapponica Grunow in Van Heurck 1881 |
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| Fragilaria minutissima Grunow in Van Heurck 1881 |
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| Fragilaria mutabilis var. cuneata Grunow in Van Heurck 1881 |
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| Fragilaria mutabilis var. elliptica (Schumann) Grunow in Van Heurck 1881 |
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| Fragilaria mutabilis var. intercedens Grunow in Van Heurck 1881 |
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| Fragilaria mutabilis var. lapponica Grunow in Van Heurck 1881 |
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| Fragilaria mutabilis f. minor Grunow in Van Heurck 1881 |
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| Fragilaria mutabilis var. minutissima Grunow in Van Heurck 1881 |
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| Fragilaria nitzschioides Grunow in Van Heurck 1881 |
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| Fragilaria nitzschioides var. brasiliensis Grunow in Van Heurck 1881 |
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| Fragilaria northumbrica Grunow in Van Heurck 1881 |
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| Fragilaria parasitica (W. Smith) Grunow in Van Heurck 1881 |
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| Fragilaria parasitica var. subconstricta Grunow in Van Heurck 1881 |
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| Fragilaria producta (Lagerstedt) Grunow in Van Heurck 1881 |
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| Fragilaria producta var. bohemica Grunow in Van Heurck 1881 |
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| Fragilaria smithiana Grunow in Van Heurck 1881 |
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| Fragilaria striatula var. californica Grunow in Van Heurck 1881 |
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| Fragilaria virescens f. clavata Grunow in Van Heurck 1881 |
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| Fragilaria virescens f. clavata Grunow in Van Heurck 1881 |
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| Fragilaria virescens var. exigua Grunow in Van Heurck 1881 |
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| Fragilaria virescens var. oblongella Grunow in Van Heurck 1881 |
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| Fragilaria virescens var. subsalina Grunow in Van Heurck 1881 |
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| Fragilaria vitrea var. minima (Ralfs) Grunow in Van Heurck 1881 |
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| Glyphodesmis distans (Gregory) Grunow in Van Heurck 1881 |
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| Glyphodesmis distans f. minor Grunow in Van Heurck 1881 |
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| Glyphodesmis williamsonii (W. Smith) Grunow in Van Heurck 1881 |
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| Grammatophora adriatica Grunow in Van Heurck 1881 |
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| Grammatophora ambigua Grunow in Van Heurck 1881 |
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| Grammatophora angulifera Grunow in Van Heurck 1881 |
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| Grammatophora angulifera var. australiensis Grunow in Van Heurck 1881 |
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| Grammatophora angulosa (angulata) var. mediterranea Grunow in Van Heurck 1881 |
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| Grammatophora angulosa (angulata) var. uncina (Leuduger-Fortmorel) Grunow in Van Heurck 1881 |
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| Grammatophora arnottii Grunow in Van Heurck 1881 |
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| Grammatophora epsilon Grunow in Van Heurck 1881 |
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| Grammatophora flexuosa Grunow in Van Heurck 1881 |
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| Grammatophora flexuosa var. delicatula Grunow in Van Heurck 1881 |
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| Grammatophora flexuosa var. hondurensis Grunow in Van Heurck 1881 |
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| Grammatophora gallopagensis Grunow in Van Heurck 1881 |
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| Grammatophora hamulifera f. capensis Grunow in Van Heurck 1881 |
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| Grammatophora hamulifera var. constricta Grunow in Van Heurck 1881 |
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| Grammatophora intermedia Grunow in Van Heurck 1881 |
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| Grammatophora japonica Grunow in Van Heurck 1881 |
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| Grammatophora lyrata Grunow in Van Heurck 1881 |
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| Grammatophora macilenta var. nodulosa Grunow in Van Heurck 1881 |
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| Grammatophora macilenta var. subtilis Grunow in Van Heurck 1881 |
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| Grammatophora marina var. adriatica Grunow in Van Heurck 1881 |
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| Grammatophora marina var. intermedia Grunow in Van Heurck 1881 |
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| Grammatophora marina var. mexicana (Ehrenberg) Grunow in Van Heurck 1881 |
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| Grammatophora marina var. minor Grunow in Van Heurck 1881 |
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| Grammatophora marina var. subundulata Grunow in Van Heurck 1881 |
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| Grammatophora marina var. tropica (Kützing) Grunow 1881 |
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| Grammatophora maxima var. ambigua Grunow in Van Heurck 1881 |
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| Grammatophora maxima var. magellanica Grunow in Van Heurck 1881 |
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| Grammatophora muelleri (mulleri) Grunow in Van Heurck 1881 |
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| Grammatophora muelleri (mulleri) var. arnottii Grunow in Van Heurck 1881 |
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| Grammatophora nodulosa Grunow in Van Heurck 1881 |
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| Grammatophora oceanica var. novaezeelandiae Grunow in Van Heurck 1881 |
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| Grammatophora ovalariensis (ovalauensis) Grunow in Van Heurck 1881 |
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| Grammatophora ovalariensis (ovalauensis) f. longior Grunow in Van Heurck 1881 |
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| Grammatophora perpusilla Grunow in Van Heurck 1881 |
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| Grammatophora puiggariana Grunow in Van Heurck 1881 |
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| Grammatophora pusilla var. scotica Grunow in Van Heurck 1881 |
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| Grammatophora undulata var. caribaea (Cleve) Grunow in Van Heurck 1881 |
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| Grammatophora undulata var. gallopagensis Grunow in Van Heurck 1881 |
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| Grammatophora undulata var. gibba (Ehrenberg) Grunow in Van Heurck 1881 |
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| Grammatophora undulata var. japonica Grunow in Van Heurck 1881 |
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| Hantzschia amphioxys var. intermedia Grunow in Van Heurck 1881 |
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| Hantzschia amphioxys var. major Grunow in Van Heurck 1881 |
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| Hantzschia rupestris Grunow in Van Heurck 1881 |
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| Homoeocladia subcohaerens var. chinensis Grunow in Van Heurck 1881 |
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| Homoeocladia subcohaerens var. scotica Grunow in Van Heurck 1881 |
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| Licmophora anglica (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora anglica f. elongata Grunow in Van Heurck 1881 |
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| Licmophora angustata (Grunow) Grunow in Van Heurck 1881 |
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| Licmophora australis (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora australis f. major Grunow in Van Heurck 1881 |
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| Licmophora californica Grunow in Van Heurck 1881 |
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| Licmophora communis (Heiberg) Grunow in Van Heurck 1881 |
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| Licmophora constricta Grunow in Van Heurck 1881 |
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| Licmophora crystallina (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora dalmatica f. brevis Grunow in Van Heurck 1881 |
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| Licmophora dalmatica var. tenella (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora debilis (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora debilis f. elongata Grunow in Van Heurck 1881 |
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| Licmophora debilis f. elongata Van Heurck 1881 |
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| Licmophora debilis var. laevissima Grunow in Van Heurck 1881 |
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| Licmophora ehrenbergii f. barbadensis Grunow in Van Heurck 1881 |
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| Licmophora ehrenbergii var. ovata (W. Smith) Grunow in Van Heurck 1881 |
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| Licmophora grandis (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora grandis var. divisa (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora juergensii var. capensis Grunow in Van Heurck 1881 |
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| Licmophora juergensii var. chersonensis Grunow in Van Heurck 1881 |
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| Licmophora juergensii var. constricta Grunow in Van Heurck 1881 |
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| Licmophora juergensii var. dubia formae longiores & brevissimae, Grunow in Van Heurck 1881 |
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| Licmophora juergensii var. genuina Grunow in Van Heurck 1881 |
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| Licmophora juergensii var. intermedia Grunow in Van Heurck 1881 |
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| Licmophora juergensii var. reichardtii (reichardti) Grunow in Van Heurck 1881 |
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| Licmophora kamtschatica Grunow in Van Heurck 1881 |
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| Licmophora lyngbyei var. abbreviata (Agardh; Kutzing) Grunow in Van Heurck 1881 |
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| Licmophora lyngbyei var. elongata Grunow in Van Heurck 1881 |
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| Licmophora lyngbyei var. genuina Grunow in Van Heurck 1881 |
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| Licmophora lyngbyei f. minor Grunow in Van Heurck 1881 |
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| Licmophora lyngbyei var. minuta Grunow in Van Heurck 1881 |
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| Licmophora lyngbyei var. pappeana (Grunow) Grunow in Van Heurck 1881 |
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| Licmophora oedipus (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora oedipus f. elongata Grunow in Van Heurck 1881 |
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| Licmophora ovata f. barbadensis Grunow in Van Heurck 1881 |
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| Licmophora paradoxa var. australis (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora paradoxa var. crystallina (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora paradoxa var. nubecula (Kützing) Grunow in Van Heurck 1881 |
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| Licmophora reichardtii (reichardti) Grunow in Van Heurck 1881 |
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| Meridion circulare var. constricta (constrictum) (Ralfs) Van Heurck 1881 |
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| Meridion constrictum (constricta) var. cum valvis internis Van Heurck 1881 |
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| Nitzschia (frustulum var.) var. perminuta Van Heurck 1881 |
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| Nitzschia (frustulum var.) var. perminuta Van Heurck 1881 |
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| Nitzschia acicularis f. minutissima Grunow in Van Heurck 1881 |
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| Nitzschia acuminata var. novaehollandiae (novae-hollandiae) (Grunow in Cleve & Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia acutiuscula Grunow in Van Heurck 1881 |
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| Nitzschia acutiuscula f. major, marina Grunow in Van Heurck 1881 |
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| Nitzschia amphibia var. frauenfeldii Grunow in Van Heurck 1881 |
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| Nitzschia amphibia f. major, marina Grunow in Van Heurck 1881 |
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| Nitzschia amphibia f. major, marina Grunow in Van Heurck 1881 |
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| Nitzschia angularis var. affinis (Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia angustata (angusta) var. curta Grunow in Van Heurck 1881 |
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| Nitzschia bilobata var. hybrida Grunow in Van Heurck 1881 |
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| Nitzschia bilobata var. minor Grunow in Van Heurck 1881 |
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| Nitzschia bilobata f. striis carinalibus brevioribus Grunow in Van Heurck 1881 |
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| Nitzschia bombiformis (Grunow in Cleve & Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia brevissima Grunow in Van Heurck 1881 |
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| Nitzschia closterium f. minutissima Grunow in Van Heurck 1881 |
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| Nitzschia constricta f. parva Grunow in Van Heurck 1881 |
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| Nitzschia denticula (denticulata) var. delognei Grunow in Van Heurck 1881 |
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| Nitzschia dissipata var. acula (acuta) Van Heurck 1881 |
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| Nitzschia dissipata var. media (Hantzsch) Grunow in Van Heurck 1881 |
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| Nitzschia distans var. subsigmoidea Grunow in Van Heurck 1881 |
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| Nitzschia elegantula Grunow in Van Heurck 1881 |
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| Nitzschia fasciculata (Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia fluminensis var. majuscula Grunow in Van Heurck 1881 |
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| Nitzschia fonticola (Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia fossilis (Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia frustulum var. bulnheimiana (Rabenhorst; Rabenhorst) Grunow in Van Heurck 1881 |
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| Nitzschia frustulum f. curta Grunow in Van Heurck 1881 |
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| Nitzschia frustulum var. glacialis Grunow in Van Heurck 1881 |
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| Nitzschia frustulum var. hantzschiana (Rabenhorst) Grunow in Van Heurck 1881 |
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| Nitzschia frustulum var. inconspicua Grunow in Van Heurck 1881 |
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| Nitzschia frustulum var. minutula Grunow in Van Heurck 1881 |
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| Nitzschia frustulum var. perminuta Grunow in Van Heurck 1881 |
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| Nitzschia frustulum var. perpusilla (Rabenhorst; Rabenhorst) Grunow in Van Heurck 1881 |
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| Nitzschia frustulum f. striis parum densioribus Grunow in Van Heurck 1881 |
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| Nitzschia frustulum f. subserians Grunow in Van Heurck 1881 |
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| Nitzschia frustulum var. tenella Grunow in Van Heurck 1881 |
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| Nitzschia glacialis Grunow in Van Heurck 1881 |
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| Nitzschia gracilis f. brevior minus producta Grunow in Van Heurck 1881 |
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| Nitzschia hantzschiana f. subserians Grunow in Van Heurck 1881 |
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| Nitzschia insignis var. adriatica (Grunow in Cleve & Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia insignis var. smithii (Ralfs in Pritchard) Grunow in Van Heurck 1881 |
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| Nitzschia intermedia f. bengalensis Grunow in Van Heurck 1881 |
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| Nitzschia lanceolata f. minima Grunow in Van Heurck 1881 |
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| Nitzschia lanceolata f. minor Grunow in Van Heurck 1881 |
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| Nitzschia latiuscula Grunow in Van Heurck 1881 |
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| Nitzschia levidensis (W. Smith) Grunow in Van Heurck 1881 |
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| Nitzschia levidensis f. minores densius striatae Grunow in Van Heurck 1881 |
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| Nitzschia littorea Grunow in Van Heurck 1881 |
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| Nitzschia littorea var. parva Grunow in Van Heurck 1881 |
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| Nitzschia longissima f. parva Grunow in Van Heurck 1881 |
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| Nitzschia major Grunow in Van Heurck 1881 |
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| Nitzschia marginulata f. parva Grunow in Van Heurck 1881 |
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| Nitzschia marginulata f. parva Grunow in Van Heurck 1881 |
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| Nitzschia maxima Grunow in Van Heurck 1881 |
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| Nitzschia minutula Grunow in Van Heurck 1881 |
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| Nitzschia nana Grunow in Van Heurck 1881 |
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| Nitzschia notabilis Grunow in Van Heurck 1881 |
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| Nitzschia obtusa var. scalpelliformis (Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia palea var. kuetzingiana (Hilse) Grunow in Van Heurck 1881 |
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| Nitzschia palea var. minuta (Bleisch in Rabenhorst; Bleisch in Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia palea var. tenuirostris Grunow in Van Heurck 1881 |
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| Nitzschia paleacea (palacea) Grunow in Van Heurck 1881 |
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| Nitzschia paradoxa f. major latior Grunow in Van Heurck 1881 |
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| Nitzschia parvula Lewis teste Grunow ex Grunow in Van Heurck 1881 |
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| Nitzschia perminuta f. curta Grunow in Van Heurck 1881 |
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| Nitzschia perminuta f. striis parum densioribus Grunow in Van Heurck 1881 |
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| Nitzschia romana Grunow in Van Heurck 1881 |
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| Nitzschia salinarum (Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia salinarum Grunow in Van Heurck 1881 |
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| Nitzschia schweinfurthii Grunow in Van Heurck 1881 |
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| Nitzschia sigma f. brevior Grunow in Van Heurck 1881 |
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| Nitzschia sigma var. diminuta Grunow in Van Heurck 1881 |
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| Nitzschia sigma f. elongatae Grunow in Van Heurck 1881 |
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| Nitzschia sigma var. habirshawii (Febiger ex Cleve & Moller) Grunow in Van Heurck 1881 |
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| Nitzschia sigma var. latiuscula Grunow in Van Heurck 1881 |
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| Nitzschia sigma f. longissima Grunow in Van Heurck 1881 |
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| Nitzschia sigma var. major Grunow in Van Heurck 1881 |
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| Nitzschia sigma var. rigida Grunow in Van Heurck 1881 |
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| Nitzschia sigma var. rigidula (Peragallo & Peragallo) Grunow in Van Heurck 1881 |
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| Nitzschia sinuata var. tabellaria (Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia spathulata var. hyalina (Gregory) Grunow in Van Heurck 1881 |
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| Nitzschia tenuis (W. Smith) Grunow in Van Heurck 1881 |
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| Nitzschia thermalis f. brevis Grunow in Van Heurck 1881 |
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| Nitzschia thermalis var. intermedia Grunow in Van Heurck 1881 |
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| Nitzschia tryblionella var. littoralis (Grunow in Cleve & Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia tryblionella f. minores densius striatae Grunow in Van Heurck 1881 |
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| Nitzschia valida f. longissima Grunow in Van Heurck 1881 |
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| Nitzschia vermicularis var. lamprocampa (lamprocarpa) (Hantzsch ex Cleve & Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia vermicularis f. minor Grunow in Van Heurck 1881 |
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| Nitzschia vexans Grunow in Van Heurck 1881 |
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| Nitzschia vexans Grunow in Van Heurck 1881 |
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| Nitzschia vidovichii (vidovichi) (Grunow) Grunow in Van Heurck 1881 |
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| Nitzschia vitrea f. major Grunow in Van Heurck 1881 |
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| Nitzschia vivax var. fluminensis Grunow in Van Heurck 1881 |
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| Nitzschia vivax f. minor Grunow in Van Heurck 1881 |
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| Peronia erinacea sensu Grunow in Van Heurck 1881 |
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| Plagiogramma interruptum var. adriatica Grunow in Van Heurck 1881 |
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| Plagiogramma ornatum var. undulatum Grunow in Van Heurck 1881 |
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| Plagiogramma undulatum Grunow in Van Heurck 1881 |
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| Plagiogramma vanheurckii Grunow in Van Heurck 1881 |
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| Pseudo-eunotia doliolus (Wallich) Grunow in Van Heurck 1881 |
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| Pseudo-eunotia hemicyclus (Ehrenberg) Grunow in Van Heurck 1881 |
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| Rhaphoneis amphiceros var. californica Grunow in Van Heurck 1881 |
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| Rhaphoneis (Raphoneis) (castracanii) castracanei Grunow in Van Heurck 1881 |
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| Rhaphoneis (Raphoneis) amphiceros var. rhombica Grunow in Van Heurck 1881 |
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| Rhaphoneis (Raphoneis) belgica var. elongata Grunow in Van Heurck 1881 |
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| Rhaphoneis (Raphoneis) belgica var. intermedia Grunow in Van Heurck 1881 |
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| Rhaphoneis (Raphoneis) fluminensis sensu Grunow in Van Heurck 1881 |
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| Rhaphoneis (Raphoneis) gemmifera f. curta Grunow in Van Heurck 1881 |
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| Rhaphoneis (Raphoneis) pretiosa var. belgica Grunow in Van Heurck 1881 |
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| Rhaphoneis (Raphoneis) surirella var. australis (Petit) Grunow in Van Heurck 1881 |
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| Sceptroneis australis (Petit) Grunow in Van Heurck 1881 |
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| Sceptroneis kamtschatika (kamtschatica) Grunow in Van Heurck 1881 |
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| Sceptroneis marina var. parva Grunow in Van Heurck 1881 |
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| Sceptroneis marina var. perminuta Grunow in Van Heurck 1881 |
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| Sceptroneis nitzschioides Grunow in Van Heurck 1881 |
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| Staurosira aequalis var. producta (Lagerstedt) Grunow in Van Heurck 1881 |
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| Staurosira bidens f. major Grunow in Van Heurck 1881 |
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| Staurosira construens var. genuina Van Heurck 1881 |
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| Staurosira mutabilis Grunow in Van Heurck 1881 |
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| Staurosira smithiana Grunow in Van Heurck 1881 |
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| Striatella delicatula (Kützing) Grunow in Van Heurck 1881 |
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| Striatella delicatula var. minutissima (Kützing) Grunow in Van Heurck 1881 |
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| Striatella delicatula var. obtusangula (Kützing) Grunow in Van Heurck 1881 |
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| Striatella delicatula var. rectangula (Kützing) Grunow in Van Heurck 1881 |
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| Striatella delicatula var. subarcuata Grunow in Van Heurck 1881 |
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| Surirella hybrida Grunow in Van Heurck 1881 |
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| Surirella lata var. hybrida Grunow in Van Heurck 1881 |
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| Surirella minuta Van Heurck 1881 |
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| Surirella minuta f. longiores Van Heurck 1881 |
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| Surirella ovata var. aequalis Kutzing ex Van Heurck 1881 |
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| Surirella robusta f. minor Van Heurck 1881 |
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| Surirella splendida f. minor Van Heurck 1881 |
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| Surirella suecica Grunow in Van Heurck 1881 |
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| Surirella (Suriraya) biseriata f. major, subacuminata Van Heurck 1881 |
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| Surirella (Suriraya) biseriata f. minor obtusa Van Heurck 1881 |
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| Synedra (affinis var.) var. fasciculata Van Heurck 1881 |
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| Synedra (ulna var.) var. danica Van Heurck 1881 |
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| Synedra (ulna var.) var. notata (Kützing) Van Heurck 1881 |
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| Synedra acus var. acula (Kützing) Grunow in Van Heurck 1881 |
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| Synedra acus var. angustissima Grunow in Van Heurck 1881 |
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| Synedra acus var. fossilis Grunow in Van Heurck 1881 |
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| Synedra affinis var. acuminata Grunow in Van Heurck 1881 |
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| Synedra affinis var. arcus (Kützing) Grunow in Van Heurck 1881 |
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| Synedra affinis f. brevior (breviores) Grunow in Van Heurck 1881 |
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| Synedra affinis f. curta, acuminata Grunow in Van Heurck 1881 |
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| Synedra affinis var. dubia Grunow in Van Heurck 1881 |
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| Synedra affinis f. elongata Grunow in Van Heurck 1881 |
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| Synedra affinis var. genuina Grunow in Van Heurck 1881 |
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| Synedra affinis f. genuina Grunow in Van Heurck 1881 |
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| Synedra affinis f. gracilior Grunow in Van Heurck 1881 |
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| Synedra affinis var. gracilis Grunow in Van Heurck 1881 |
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| Synedra affinis var. hybrida Grunow in Van Heurck 1881 |
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| Synedra affinis var. intermedia Grunow in Van Heurck 1881 |
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| Synedra affinis var. lancettula Grunow in Van Heurck 1881 |
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| Synedra affinis var. lepida Grunow in Van Heurck 1881 |
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| Synedra affinis var. obtusa Arnott ex Van Heurck 1881 |
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| Synedra affinis f. parva Grunow in Van Heurck 1881 |
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| Synedra affinis var. rupicola Grunow in Van Heurck 1881 |
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| Synedra affinis var. subtilis Grunow in Van Heurck 1881 |
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| Synedra affinis var. tenuis Grunow in Van Heurck 1881 |
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| Synedra amphicephala var. fallax Grunow in Van Heurck 1881 |
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| Synedra amphicephala var. striis tenuioribus Grunow in Van Heurck 1881 |
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| Synedra arcus var. genuina Grunow in Van Heurck 1881 |
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| Synedra austriaca Grunow in Van Heurck 1881 |
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| Synedra capensis Grunow in Van Heurck 1881 |
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| Synedra capitellata Grunow in Van Heurck 1881 |
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| Synedra capitellata var. cymbelloides Grunow in Van Heurck 1881 |
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| Synedra capitellata f. striis distantioribus Van Heurck 1881 |
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| Synedra closterioides Grunow in Van Heurck 1881 |
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| Synedra commutata var. producta Grunow in Van Heurck 1881 |
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| Synedra commutata var. septentrionalis Grunow in Van Heurck 1881 |
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| Synedra crotonensis (Kitton) Grunow in Van Heurck 1881 |
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| Synedra crotonensis f. belgica Grunow in Van Heurck 1881 |
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| Synedra crotonensis var. prolongata Grunow in Van Heurck 1881 |
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| Synedra crystallina var. smithii Grunow in Van Heurck 1881 |
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| Synedra delicatissima var. amphicephala Van Heurck 1881 |
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| Synedra delicatissima var. angustissima Grunow in Van Heurck 1881 |
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| Synedra delicatissima f. brevis Van Heurck 1881 |
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| Synedra delicatissima var. mesoleia (mesoleja) Grunow in Van Heurck 1881 |
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| Synedra demerarae (demeraraae) Grunow in Van Heurck 1881 |
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| Synedra dubia Grunow in Van Heurck 1881 |
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| Synedra fallax Grunow in Van Heurck 1881 |
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| Synedra famelica var. minuscula Grunow in Van Heurck 1881 |
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| Synedra familiaris f. major Grunow in Van Heurck 1881 |
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| Synedra familiaris f. parva Grunow in Van Heurck 1881 |
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| Synedra fasciculata f. undulata Grunow in Van Heurck 1881 |
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| Synedra formosa var. amphipachya Grunow in Van Heurck 1881 |
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| Synedra fulgens var. dalmatica Grunow in Van Heurck 1881 |
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| Synedra fulgens var. mediterranea Grunow in Van Heurck 1881 |
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| Synedra gaillonii var. macilenta Grunow in Van Heurck 1881 |
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| Synedra gloiophila Grunow in Van Heurck 1881 |
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| Synedra hennedyana f. longissima Grunow in Van Heurck 1881 |
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| Synedra intermedia Grunow in Van Heurck 1881 |
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| Synedra investiens var. capensis Grunow in Van Heurck 1881 |
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| Synedra investiens var. fragilarioides Grunow in Van Heurck 1881 |
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| Synedra investiens var. genuina Grunow in Van Heurck 1881 |
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| Synedra investiens var. gomphonemacea Grunow in Van Heurck 1881 |
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| Synedra laevigata var. angustata Grunow in Van Heurck 1881 |
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| Synedra lanceolata f. brevis Van Heurck 1881 |
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| Synedra lanceolata f. longior Van Heurck 1881 |
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| Synedra lancettula Grunow in Van Heurck 1881 |
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| Synedra lepida Grunow in Van Heurck 1881 |
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| Synedra minuscula Grunow in Van Heurck 1881 |
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| Synedra nitzschioides f. cuneata Grunow in Van Heurck 1881 |
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| Synedra parva var. chilensis Grunow in Van Heurck 1881 |
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| Synedra perminuta Grunow in Van Heurck 1881 |
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| Synedra pulchella (Ralfs in Pritchard) Van Heurck 1881 |
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| Synedra pulchella var. genuina Grunow in Van Heurck 1881 |
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| Synedra pulchella f. major Grunow in Van Heurck 1881 |
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| Synedra pulchella f. major Van Heurck 1881 |
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| Synedra pulchella var. naviculacea Grunow in Van Heurck 1881 |
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| Synedra pulchella var. saxonica (Kützing) Grunow in Van Heurck 1881 |
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| Synedra pulchella var. smithii Grunow in Van Heurck 1881 |
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| Synedra pulchella var. tenuistriata Grunow in Van Heurck 1881 |
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| Synedra rumpens var. familiaris (Kützing) Grunow in Van Heurck 1881 |
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| Synedra rumpens var. fragilarioides Grunow in Van Heurck 1881 |
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| Synedra rumpens var. genuina Grunow in Van Heurck 1881 |
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| Synedra rumpens f. major Grunow in Van Heruck 1881 |
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| Synedra rumpens var. meneghiniana Grunow in Van Heurck 1881 |
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| Synedra rumpens f. parva Grunow in Van Heurck 1881 |
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| Synedra rumpens var. scotica Grunow in Van Heurck 1881 |
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| Synedra spathulifera Grunow in Van Heurck 1881 |
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| Synedra subaequalis Grunow in Van Heurck 1881 |
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| Synedra tabulata f. curta, acuminata Van Heurck 1881 |
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| Synedra tenella Grunow in Van Heurck 1881 |
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| Synedra ulna f. angustior, tenuirostris Grunow in Van Heurck 1881 |
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| Synedra ulna f. area media laevi destituta Grunow in Van Heurck 1881 |
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| Synedra ulna f. area media laevi destituta Van Heurck 1881 |
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| Synedra ulna var. bicurvata (Biene ex Rabenhorst) Grunow in Van Heurck 1881 |
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| Synedra ulna f. brevis Van Heurck 1881 |
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| Synedra ulna f. longior Van Heurck 1881 |
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| Synedra ulna f. longirostris Grunow in Van Heurck 1881 |
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| Synedra ulna var. longissima Grunow in Van Heurck 1881 |
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| Synedra ulna var. notata Grunow in Van Heurck 1881 |
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| Synedra ulna var. subaequalis Grunow in Van Heurck 1881 |
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| Synedra vaucheriae var. deformis Grunow in Van Heurck 1881 |
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| Synedra vaucheriae var. distans Grunow in Van Heurck 1881 |
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| Synedra vaucheriae var. genuina Grunow in Van Heurck 1881 |
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| Synedra vaucheriae var. gloiophila Grunow in Van Heurck 1881 |
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| Synedra vaucheriae var. perminuta Grunow in Van Heurck 1881 |
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| Synedra vitrea f. angustior, tenuirostris Grunow in Van Heurck 1881 |
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| Synedra vitrea f. longirostris Grunow in Van Heurck 1881 |
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