Vlll PREFACE. 



I should like to take the present opportunity of thanking 

 the numerous cultivators, whose names are mentioned in the 

 hody of the work, for the living specimens with which they 

 have supplied me, and of expressing my obligations to Sir 

 J. D. Hooker, Dr. Masters, Dr. Trimen, and Mr. James 

 Britten, for the opportunity they have given me of publishing 

 in the ' Botanical Magazine,' the * Gardeners' Chronicle,' and 

 the * Journal of Botany,' what I have already written on the 

 order. 



J. G. BAKER. 



Kew Herbakium, 



March 20th, 1888. 



