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Referred to in the Register and Checklist
A- ‘Aldebert Fr.’
- ‘Ambrose UK.’
- ‘Ander H. Ger.’
- ‘Anderson NZ.’
- ‘Andrade Aust.’
- ‘Andrea R & R USA.’
- ‘Archard UK.’
- ‘Arnold E.F. & D. Aust.’
- ‘Ashdown Forest Nurseries UK.’
- ‘Ashfield UK.’
- ‘Ashworth UK.’
- ‘Asmussen Denmark’
- ‘Attfield, Kenneth Aust.’
- ‘Aubrey, John UK.’
- ‘Axelson USA.’
- ‘Ayres UK.’
B- ‘Babouillard Fr.’
- ‘Bacher E. Swz.’
- ‘Bainbridge H. UK.’
- ‘Baker G.A. & D.M. Aust.’
- ‘Baker UK’
- ‘Balmont UK.’
- ‘Barandou’
- ‘Barba UK.’
- ‘Barba USA.’
- ‘Barclay, Edwin Aust.’
- ‘Bard USA’
- ‘Barratt UK.’
- ‘Bassett UK.’
- ‘Batey Mrs C. Aust. (Denelle Geranium Nursery)’
- ‘Bath Messrs. Ltd. UK’
- ‘Beaton, Donald UK.’
- ‘Beck UK.’
- ‘Beedham UK.’
- ‘Beedham, Mrs P.H. UK.’
- ‘Behringer USA.’
- ‘Bell Frieling USA.’
- ‘Bennett Aust.’
- ‘Bennett, Monica UK.’
- ‘Bernieau Fr.’
- ‘Bert-Rand’
- ‘Bert-Rendatier Fr.’
- ‘Bidwell, R.C. UK. Suffolk Miniature & Dwarf Specialist’
- ‘Bielby, Lenard UK. Yorkshire Specialist in Mosaic grafts’
- ‘Bird, Melva Aust.’
- ‘Blackerby, Elizabeth UK.’
- ‘Blackford UK. (Jersey)’
- ‘Blackman, Clifford E. Aust. Specie Hybrid Specialist’
- ‘Blakedown Nurseries UK.’
- ‘Blakeman, John R. Aust.’