perial University and those of liis oun collections, and he found five species 

 of Saiissiirea irom our country affected by Coleosporiiim ; they are Saitssurea 

 j'aponica DC, .S'. Maxintoiuicaii Hickd., -S". Ricderi IIkkd., S. Tanakae Fr. et 

 S.w. and .S", Hssuriensis M.axim. in which are included the Dietel's type spe- 

 cimens. After a careful examination, he could not find microscopically any 

 remarkable morphorogical difference between the.se fungi on the different species 

 of Saussurea. For the present, it is advi-sable to include these fungi under one 

 species, Coleosporium Saiissureae TiiüM. as is Svnow's opinion. Among the 

 above species of Saussurea, two species, Saussurea Tanakae and -S". Riedcri 

 are new host plants to the present fungus. 



On Augu.st 3, 192S, the writer climbed Mt. Kuro-dakc, a eastern peak 

 of the Taisetsu-range from Sounbetsu, and spent several days in the shed near 

 the top for study of the mycological flora of the Taisetsu-range. During our 

 e.\cursion, the writer collected many samples of Coleosporium Saiissureae Thüm. 

 on Saussurea Riedcri IIkrd. on the eastern slope of the alpine meadow near 

 the summit of Mt. Kuro-dake and also discovered many old Periderttiium, the 

 aecidiospores of which were already gone away, on two year old needles of 

 Pinus puiiiila Re(;i:l. in the same locality. .So he considered that the aecidial 

 stage of Coleosporium on Saussurea Riederi may occur on the leaves of Pinus 

 pumila. 



On August 17, the same year, Prof. K. MI^.\BE, IMr. M. T.\tevvaki and 

 the writer also visited the same place and could confirm that the same condi- 

 tions were present at that time. 



The third visit was made under the direction of Prof S. Ito by the writer 

 with other gcntlmen in the laboratory on July 26, 1926. At this time, a large 

 number of well-matured Peridermiiun on two year old needles of Pinus pundla 

 were collected by ourselves at the same place. After our return to Sapporo, 

 under suggestion of Prof. 1x6, the writer on August 3, 1926, inoculated these 

 aecidiospores of Peridertnium from Mt. Kuro-dake, on the lea\'es of Satissurea 

 Riederi which Mr. B. Ishilu, Assistant in the Botanical Garden to the Univer- 

 sity, collected on Mt. Asahi-dake, one of peaks of the Taisetsu-range, several 

 years ago and has cultivated in the Botanical Garden. The method of ino- 

 culation experiment is quite similar to that for the former species. About ten 



