INTRODUCTION. Ill 



Ceriops, represented by a variety of G. Canddlleana ARN. The type is 

 a native of the tropical shores of the Old World. 



Monotropa, represented by M. uniflora LINN. The species is widely 

 distributed in Northern India, Central China, Manchuria, Japan and North 

 America. 



Stimpsonia, represented by a S. chamcedryoides WEIGHT which is 

 distributed in China, Korea and the Liu-Kin. Islands. 



Geniostoma. A doubtful species of the genus is known from Kwa- 

 shoto Island. 



Fayrcect, represented by F. ,SW7,-n HAYATA, which somewhat resembles 

 F. obovata WALL. 



Carpinus, represented by C. Kawalcamii HAYATA and one other species, 

 all endemic to Formosa. 



Corylus, represented by a sterile specimen, closely related to C. 

 rostrata var. Siebddiana MAX. 



Galeda, represented by a, Malay plant, G. aUissima. 



Pinanga, represented by P. TasJdroi HAYATA which is closely related 

 to a Philippine species, P. Barnem BECC. 



The species and varieties recently added or now to be added 

 number as many as 211.* 



Thus up to the present date, the total number of the flora, 

 so far as is known, is 2918 species belonging to 881 genera and 

 158 families. 



In the present volume, Mitrastemon Kawasasakii HAYATA is 

 mentioned under a family different from that to which it was 

 formerly referred. As so great an alteration is a matter of 

 importance, I have given my reasons under a separate heading, 

 " On -the systematic Position of Mitrastemon, as a Genus repre- 

 senting a special Tribus of the Piafflesiaceae." 



Though the scope of the present work is limited to the study 

 of the Formosan flora, I have included some collections from 



* It should be understood that plants outside of the island are not counted in this number. 



