Kingdom Plantae Haeckel (1866) - plants
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   Division Pinophyta Cronquist, Takht. & Zimmerm. see Division Pinophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996)
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     Subdivision Gneticae see Class Gnetopsida Eichler ex Kirpot. (1884)
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       1 Order Gnetales Mart. (1835)
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       2 Order Ephedrales Dumort. (1829)
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       3 Order Welwitschiales Skottsb. ex Reveal (1993)
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