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265 Summary of the Taxa Treated in This Volume Families Genera Species Lesser Taxa Hybrids Polygonaceae 6 48 3 Hamamelidaceae 2 2 Platanaceae 1 1 Fagaceae 3 23 3 18 Betulaceae 2 8 2 2 Corylaceae 3 4 Totals 17 86 8 20 ...

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