n INTBODUCTION. 



As to the total number of species recorded from the island, I 

 may add that in the preceding fascicle it was stated to be 2660 

 species, belonging to 836 genera and 156 families. Since then just 

 one year has elapsed. During that time I have secured many 

 collections and a number of genera and new species have to be 

 added to our Formosan flora. The genera to be added at this 

 time together with a few that appeared in the Toky» Botanical 

 Magazine a few months ago, are given in the following table. 



Cissus 



Medinilla 



Chimaphila 



Pachysandra 



Cremastra 



Listera 



Drymotcenium 



Semecarpus 



Giliberfia 



Erycibe 



Sarcococca 



Cypripedium 



Oreorchis 



Peranema 



Gonocaryum 



Pachysentria 



Ldtosanthes 



Blachia 



Mitrastemon 



lone 



Tceniophyllum 



Lecanopteris. 

 The species newly added or now to be added number as 

 many as 47. Among these stands Eafflesiaceae or Mitra- 

 stemonacece, a new family proposed' by Mr. T. Making, and 

 represented in Formosa by Mitrastemon- Kawa-Sasakii Hayata. 

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

 as is known, is 2707 species, belonging to 858 genera and 157 

 families. 



In conclusion, I avail myself of this opportunity ' to express 

 my obligations to the officials of the Government of Formosa who 

 have helped me in the collection of materials and in the publica- 

 tion of my work. 



B. HAYATA. 



Taihoku and Tokyo, September 10th, 1912. 



