ON THE UREDINEAE PARASITIC ON THE JAPANESE GRAMINEAE. iSl 



climate has also been studied by many scholars. Moreover, the question of 

 the propagation of the rust fungi has been fully discussed by ERIKSSON, 

 Marshall Ward, Klebahn and other botanists. 



In our country, very little has as yet been done in regard to the investiga- 

 tions of the biological characters as well as of the preventive means of the 

 rust fungi. But to carry out such investigations satisfactorily, the classification 

 based on careful morphological studies must first be undertaken. 



Messers. Y. TakahasHI (i)(2) and A. Maee (i) made some systematic 

 studies of the rust fungi of our cereals. Mr. S. HORl(i)(2) published the 

 result of his study on Piiccinia corticioidcs Berk, et Br., Mr. K. YOSHINO (i) 

 on the rust of Sctaria italica Beauv. var. germanica Trin., and recently Prof. 

 S. KUSANO (2) published a monogragh of Puccinia on the leaves of 

 Bambuseae, in which he described two new species, Puccinia PliyllostacJiydis 

 and Piiccijiia Sasae, and a new variety, Puccinia Kusanoi Diet. var. Arjunia. 

 Besides those works, there are none yet published in our country relating to 

 the Uredineae on Gramineae. Most of our species were identified and des- 

 cribed by European mycologists — Berkeley, Dietel, Sydow, P. Hennings 

 and Magnus. 



A large number of the specimens of the Uredineae on the Japanese 

 grasses preserved in the Herbarium of our University were kindly placed in 

 my hand by Prof K. MiYABE for the preparation of the present paper. 

 Besides them, many interesting and valuable specimens were kindly sent at 

 my request by Profs. M. Shirai, S. Kusano and G. Yamada, Messers. Y. 

 Takahasiii, a. Ideta, T. Nishida, T. Kawakami, J. Hanzawa, T. Mi- 

 yake, R. Suzuki, M. Miura, M. Kasai, N. Nambu, K. Yoshino, T. 

 Yoshinaga and T. Kurihara. All these specimens are now preserved in 

 our University Herbarium. 



The specimens have been collected from different parts of Japan, from 

 Saghalien and Kurile Islands on the north, to Formosa on the south. The 

 total number of specimens I have examined is about 800, in which six genera, 

 73 species and 2 varieties are included. They are as follows : — ■ 

 Uromyces 4 sps., and i var., Puccinia 58 sps., and i var., Diorchidium i sps., 

 Stereostratum i sps., Rostrupia 2 sps., and Uredo 7 sps. 



