196 S. ITO. 



1902. N. Nambu).— Prov. Rikuchü : Morioka (IF. July 21, 1907. G. YaMADa) ; Kuzuraaki (II. & III. 

 July 6, 1907. M. Miura). — Prov. ICozuke : Öda (11. June 5, 1906. G. Matsumura). — Prov. Echigo: 

 Kukuto-mura (II. June 1903. K. Yoshino). — Prov. Ecliizen : Fukui (II. 1907. A. Ideta). — Prov. 

 Settsu : Osaka (111. 1906. A. Ideta). 



Kiushü. — Prov. Higo: Kumamoto (HI. June 1907. T. Tada) ; Jinnai-mura (III. May 20, 1905. 

 K. YosHiNO) ; Kuhonji-mura (II. May i, 1905. K. Yoshin'O). 



Shikoku. — Prov. lyo : Kuwahara (II. June 19CO. K. (Xudaira) ; Sugj-mura (IF. June Ic, 

 1899. K. Okudaira). 



On Triticuni vionococcuvi L. (cult.) 



Hokkaido.— Prov. Ishikari: Sapporo Bot. Card. (III. Sept. 1902. T. I.iiv'AKE). 

 Distrib. Europe, North America, Asia and .\frica. 



RemaI'IKS. The yellow rust, as this fungus is now generally known, 

 occurs more frequently on wheat than on barley in several parts of Japan. 

 This species can easily be distinguislied macroscopically from other rust 

 fungi on cereals by the yellowish discolored streaks of the uredosori on the 

 leaves and also by the streak-dotted arrangement of the teleutosori on the 

 sheath. 



This species was at first included with other species in Pncciuia ritbigo- 

 vera DC. (/'. striieforuds West., /'. stratniiiis Fuck.). In 1S94, ERIKSSON' 

 and Hen.MNG (i) divided Pncciuia riil)igo-vira into two species, viz., 

 ]'' . glitinaruin (Schmidt.) and /'. dispersa by their morphological characters. 

 In 1899, Er1KSSO.\ (4) divided old P. rubigo-vcra still further into the 

 following eight species : — 



1. Puccinia gluiiiavHin (Schmidt.) Eriks, et Hcnn. 



The yellow rust (yEcidium unkown). 



2. P. dispersa Eriks, (not Eriks, et Henn.) 



The brown rust of rye (yEcidium on Aitcliusa). 



3. P. triticina Eriks. 



The brown rust of wheat (/Ecidium unknown). 



4. /'. SyitipJiyti-Brfluiuniin Müll. ( = P. bromina Eriks.) 



The brown rust of bromes (/Ecidium on Synipliytnni). 



5. P. dgropyrina Eriks. 



On Triticum rcpcns (/Ecidium unknown). 



6. /'. holcina Eriks. 



On Holcns lanatus, H. mollis (/Ecidium unknown). 



