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Including names of Authors of published works, nurserymens’ published lists and catalogues, and referred to in the Register and Checklist
R- ‘Ramm Botanicals & Displays Aust.’
- ‘RDF Ger.’
- ‘Red Cliffs Aust.’
- ‘Rober USA.’
- ‘Rock USA.’
- ‘Rosebank Aust.’
- ‘Rosedale Aust.’
- ‘Rule Aust.’
