PREFACE ix 
the Victoria Medal of honour in commemoration of Queen 
Victoria’s Jubilee. 
Our grateful acknowledgments are made to Lieut.-Col. 
Sir G. L. Holford, K.C.V.O., for his kindness in affording 
us facilities for getting the illustrations. Every plant illus- 
trated is a first-rate specimen of its kind, and all have 
been photographed in Sir George Holford’s collection at 
Westonbirt, which is so well cultivated by his grower, 
Mr. H. G. Alexander. 
THE EDITOR. 
