Principal originators and introducers

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Referred to in the Register and Checklist

    O
  • ‘Odler F. Fr.’
  • ‘Oertly P. Swz.’
  • ‘Offerderlein USA.’
  • ‘Ogilvee-Schenk Can.’
  • ‘Oglevee USA.’
  • ‘Opawa NZ.’
  • ‘Ophinestone UK.’
  • ‘Or UK.’
  • ‘Outwater O. USA.’