Z MAÏSUMURA AND HAYATA. 



uiul 149 Cryptogîuiis, including the ferjis and fern-allies, with 

 the jiddition of a few sea-weeds. Nearly ten years have elapsed 

 since this hook was puhlished, during which period the island has 

 been visited by several collectors, and many other important plant- 

 species have been discovei-ed. It now becomes necessar}' for us 

 to make a more complete list, based upon the study of these 

 collections and of the literature which is accessible to us up to 

 this date. The present work has been undertaken to give a more 

 complete general information about the Formosan flora. 



The materials upon which our work is based are as follows: 



1. Collections preserved in the Herbarium in the Botanical 

 Institute, College of Science, Imperial University, Tokyo. Since 

 the acquisition of Formosa by Japan, many collectors have been 

 sent from the Imperial University, — such as Messrs. T. Making 

 and C. 0\v ATARI, in 1896 ; Mr. C. Owatari again in 1897-1898, 

 and Mr. K. Miyake in 1899-1900. They all brought back 

 large collections to the Herbarium. The routes travelled by them 

 are shown in the map annexed to the present paper. Besides the 

 collectors above mentioned, Mr, Y. Tashiro of Formosa sent us 

 a great number of specimens collected in various parts of the 

 island in 1896-1898. Further, Messrs. T. Niinami, S. Honda, 

 S. Kawai, H. Kawakami, Y. Satake, U. Ueno and S. Yoko- 

 YAMA may be mentioned as contributors of valuable specimens. 



2. A collection by Kev. U. FauriEj who made a short 

 visit in the northern part and sent us for determination six 

 hundred specimens collected there. 



3. The specimens which were collected by Mr. S. Yang 

 during his stay in Formosa in 1896-1897, have been sent to us 

 by the Sapporo Agricultural College for identification. They 

 are now preserved in the same College. 



