JOURNAL OF THE COLLEGE OF SCIENCE, TOKYO IMPERIAL UNIVERSITY. 

 VOL. XXXIV., ART. 2. 



Conspectus Rosacearum Japonicarum 



sive 



Monographia Rosacearum 



ex insulis 



Kurile, Sachalin, Yezo, Honto, Sikoku, Kiusiu, Liukiu, 

 Bonin, et Formosa hucusque certe cognitarum 



auctore 



G. Koidzumi. 



Introduction 



Plants of the Kosaceœ, which may be said to be surely 

 known at the present from the regions indicated in the heading 

 of this memoir, number not less than 40 genera and 244 species. 

 The present work deals with all these. An analysis of the above 

 numbers with reference to the four subfamilies of the family, 

 is given in the following table. 



