Modern nomenclature and classification of many plants has called for considerable changes and rearrangement, for example, Arum Lily is no longer Richardia, it is Zantedeschia; the flowering crabs are no longer to be found under Pyrus, they are now classified under Malus, etc. etc. Such changes, although essential to an up-to-date book, can prove confusing to the gardener who persists in calling his Montbretia, Montbretia, when it is now classified as Tritonia, ...
