Standard references for nomenclature to be used pursuant to Article 4 (3) (c) to indicate scientific names of species in permits and certificates A dictionary of flowering plants and ferns, 8th edition (J. C. Willis, revised by H. K. Airy Shaw, 1973, Cambridge University Press) for generic synonyms not mentioned in The plant book, until they are superseded by standard checklists adopted by the Conference of the Parties to the Convention
