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K. Airy Shaw, 1973, Cambridge University Press) for generic synonyms not mentioned in The Plant Book, unless they are superseded by standard checklists adopted by the Conference of the Parties as referenced in paragraphs (m) to (q).
A Dictionary of Flowering Plants and Ferns, 8. izdaja (J. C. Willis, dopolnil H. K. Airy Shaw, 1973, Cambridge University Press) za rodovne sinonime, ki niso navedeni v The Plant Book, razen če so nadomeščeni s standarnimi kontrolnimi seznami, ki jih sprejme Konferenca pogodbenic, kot je navedeno v odstavkih (m) do (q).