IV INTBODUCTION. 



Hainan, Liu-Kiu, and the Bonin Islands, as I consider them to 

 be regions closely related botanically to Formosa. 



My readers will notice that I have substituted the word 

 " Volume " for " Fascicle " as used in the preceding portions of the 

 Icones Plantarum Formosanarum, nee non et Contributiones ad 

 Floram Formosanam. As each of these portions contains more 

 than two hundred pages and thirty plates, the word "Volume" 

 seems more appropriate than " Fascicle." 



In conclusion, I avail myself of this opportunity to tender 

 my hearty thanks to the officials of the government of Formosa, 

 to whom I am much indebted for help in the collection of 

 materials and in the publication of this work. 



B. HAYATA. 



March 31, 1913. Taihoku and Tokyo. 



