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Classification of the order Ceratophyllales
Or.
Ceratophyllales
Link 1829
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Fm.
Ceratophyllaceae
Gray 1822 [hornwort]
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G.
Ceratophyllum
Linnaeus 1753
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Ceratophyllum demersum
Linnaeus 1753
G. †
Donlesia
Dilcher and Wang 2009
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†
Donlesia dakotensis
Dilcher and Wang 2009