Isoetes
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Isoetes acadiensis
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Isoetes X altonharvillii
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Isoetes appalachiana
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Isoetes bolanderi
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Isoetes boomii
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Isoetes X brittonii
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Isoetes X bruntonii
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Isoetes butleri
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Isoetes X carltaylori
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Isoetes X dodgei
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Isoetes X eatonii
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Isoetes echinospora
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Isoetes X echtuckeri
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Isoetes engelmannii
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Isoetes X fairbrothersii
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Isoetes flaccida
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Isoetes flettii
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Isoetes X foveolata
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Isoetes georgiana
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Isoetes X harveyi
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Isoetes hawaiiensis
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Isoetes X herb-wagneri
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Isoetes X heterospora
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Isoetes X hickeyi
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Isoetes howellii
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Isoetes hyemalis
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Isoetes X jeffreyi
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Isoetes junciformis
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Isoetes lacustris
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Isoetes lithophila
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Isoetes louisianensis
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Isoetes X marensis
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Isoetes maritima
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Isoetes mattaponica
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Isoetes melanopoda
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Isoetes melanospora
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Isoetes microvela
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Isoetes minima
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Isoetes X novae-angliae
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Isoetes nuttallii
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Isoetes occidentalis
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Isoetes orcuttii
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Isoetes piedmontana
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Isoetes prototypus
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Isoetes X pseudotruncata
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Isoetes riparia
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Isoetes saccharata
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Isoetes tegetiformans
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Isoetes tennesseensis
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Isoetes texana
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Isoetes X truncata
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Isoetes tuckermanii
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Isoetes valida
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Isoetes virginica
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Last updated 12/15/2014.