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Miller, Diana M. (1995). Standard Specimens for Cultivated Plants. Proceedings of the Second International Symposium on the Taxonomy of Cultivated Plants August 10-14 1994 in Acta Horticulturae 413: 35-39.
Miller, Diana M. (1998, April). Raising Standards. The Garden 124(4): 282 - 283.
Miller, Diana M. & Susan Grayer (2000). Standard Portfolios in the Herbarium of the Royal Horticultural Society. Scientific poster, in Proceedings of the Third International Symposium on the Taxonomy of Cultivated Plants, Edinburgh, 1998. Kew: Royal Botanic Gardens.
Miller, Diana M. & Susan Grayer (1999). Designated Standards held in the Royal Horticultural Society's Herbarium, Wisley. RHS, Wisley.
Grayer, Susan (1998). Tracing Standard Portfolios at the Wisley Herbarium. PlantNet 8: 8.
Trehane, Piers (1993). Standard Specimens and Standard Illustrations. Hortax News 1 (1): 12-16.
Trehane, Piers (ed.) (1995). International Code of Nomenclature for Cultivated Plants - 1995: Article 12, Article 32, p159. Quarterjack Publishing, Wimborne, UK.
This information has been compiled by the Herbarium of the Royal Horticultural Society with assistance from the Database Administrators and the Information Technology Department.
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