Principal originators and introducers

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Referred to in the Register and Checklist

    P
  • ‘Plaisancon Fr.’
  • ‘Poirier Fr.’
  • ‘Polatschek, Josef Aus.’
  • ‘Pollard, Steve. UK.’
  • ‘Pope M. UK.’
  • ‘Popham UK.’
  • ‘Popperwell, Mrs. E.A. UK.’
  • ‘Portas, Tom and John UK.’
  • ‘Poss, Martin A. USA.’
  • ‘Post, Phillip M. USA.’
  • ‘Postan UK.’
  • ‘Potten-Losten (Spalding)’
  • ‘Pottinger, Bill. UK.’
  • ‘Powell Mrs. J. Aust.’
  • ‘Puteaux Fr.’
  • ‘Puttock Aust.’
  • ‘Pyneart Fr.’
    • Q
  • ‘Quigley, Mrs. Lloyd USA.’
  • ‘Quillardet Fr.’
    • R
  • ‘Rager C.W. USA.’
  • ‘Rawlings S. UK. (Lackhams College Wilts)’
  • ‘Read F.G. UK.’
  • ‘Rendatler Fr.’
  • ‘Rendle UK.’
  • ‘Richalet Fr. (Spalding)’
  • ‘Richards Mrs. J. Aust.’
  • ‘Richardson Mrs. P. UK.’
  • ‘Richie Mrs. D.J. Aust.’
  • ‘Robbins UK.’
  • ‘Rober, Ernest Heinrick Christian USA. (Geranium Farm, West Los Angeles Nursery)’
  • ‘Roberts D. UK.’
  • ‘Robinson A.S. UK.’
  • ‘Robinson Mr. Aust.’
  • ‘Rock (Spalding)’
  • ‘Rogers UK.’
  • ‘Roller, Carole USA.’
  • ‘Rollinson UK.’
  • ‘Ross, Ervin & Mary Ellen USA. (Merry Gardens)’
  • ‘Roth USA.’
  • ‘Rouge’
  • ‘Rouse Belg.’
  • ‘Roxain Fr. (Spalding)’
  • ‘Rozain Fr. (Spalding)’
  • ‘Rozain-Boucharlet Fr. (Spalding)’
  • ‘Rudolph van der Goot’
  • ‘Rundle’
  • ‘Russell UK.’
  • ‘Rutter W.E. UK.’
    • S
  • ‘Saddington Aust.’
  • ‘Salmon, Mrs M.O. UK.’