236 ^- ITU. 



Brachypodiitm silvaticum is the only plant I have examined as a host 

 for this fungus. P. HENNINGS recorded Brachypodiinn japonicuui as its 

 host-plant. 



/Ecidium stage only, f'lund in Japan. 



56. Puccinia perplexans I'lowr., Quart. Journ. Micr. Sc, 25, 1885, 

 (164); Brit. Ured. and Ustil., 1889, (179); Sacc, Syll., 7, 188S, (632); 

 Dietel, in Hcdw., 28, 1S89, (278); in Kngl., Bot. Jahrb., 34, 1905.(585); 

 Klebahn, Zcits. f. Fflanzenk., 12, 1902, (145); Sydow, Monogr. Ured., 1, 

 1904. (719). 



Sjm. : JEL-idiiiui Rauunculaccaniin UC, FI. franc., 6, (97)- 



Hab. On Raminatlus accr L. var. Stevcni Rgl. 



Sag-halien. — Kshunnai (I. July 7, 1906. T. Mivake). 



On Ranunculus acer L. .' 



Saghalien.— (-)domari (1. June 19, 1906. 'I'. Mivakk); Darny (I.June 27, 190b. i". Mivake). 



On Raminatlus japcniciis I.angs. 

 Hokkaido. — Prov. Ishikari: Sapporo (I. June i5, 1890. K. MiVAm-, ; I. June 3, igco. G. 

 Yamada); Iloiomui (I.June 13, 1897. G. Vam.\da). 



Honshu. — Prov. Musashi: Shimura (I. May i, 1901. K. Mivabe). 

 Distrib. Europe and Japan. , 



Remarks. In lüirojjL-, the present species produces its uredo- and 

 teleutospores on Alopccurus pratensis ; whose genetic relation with the 

 ^cidium on Ranunculus accr was cxperimentall}' proved b)- Pl.OWRlcilT 

 in 1885. 



The presence of the uredo- and teleutospores of this fungus in Jajian is 

 not yet recorded. In 1905, DlETEl, identified the ^cidium on A'rt«////(-«/«.f 

 accr var. japonicus as the jiresent sjiecies from the specimen sent tn him 

 by Mr. Nampu. 



The specimens jsreserved in the University Herbarium are on Raimn- 

 cultis accr var. Stevcni and var. japonicus. They agree exacth' in their 

 morphological characters with the luu'opean specimens of J^ucc/nia per- 

 plexans. Another form of jEcidium on Ranunculus acer in F.uroiie was 

 combined experimentally by ScilROETER with Uroniyccs Dactylidis. The 

 uredo- and teleutospores of this Uromyces are also not yet found in our 



