Notes on the Species of Puccinia Parasitic on 

 the Japanese Ranunculaceae. 



By 

 Seiya Ito. 



In his Monographia Uredinearum, SYDOW ascribed to the Japanese Flora two 

 species of Puccinia as growing on our Ranunculaceae (P. japonica Diet, and 

 P. exhausta Diet.), and later he (18) added to the list another species, P. Traulvet- 

 teriae Syd. et Holw. In the course of my study on the Japanese Uredineae, I 

 have found that there are many other species of Puccinia new to our Flora which 

 are parasitic on our Ranunculaceous plants. The total number of newly added 

 species are ten, of which one is apparently new to science ; and I have described it 

 in the following pages under the name of P. Anemonae-Raddeanae ; and besides 

 there is one new variety, P. cohaesa var. japonica. 



The present study is based principally on the specimens preserved in the 

 Herbarium of our College, and also on the collections' of Messrs. T. MIYAKE and 

 M. MIUEA. To these gentlemen I wish to express my thanks. 



I also wish to tender my heartiest thanks to Prof. Dr. K. MiYABE, for his many 

 valuable suggestions and his constant kind direction. 



In the Botanical Institute, College of 



Agriculture, Tohoku Imperial University, 

 Sapporo. 



