28 ^^-B:^m7 9i^\f 1 ^-.i^Wu'Wi^X 



Ph. suhcoriichmi (Schrank) Wint. and Ph. Fragariadri (DC) Scliroct., which 

 were ascribed by DiETEL (11) and P. HENNINGS (14) to our flora, have not been 

 found by us, notwithstanding careful search being made for them. 



On Rma rugosa Thunb. two forms of Phragmidimn are commonly found in 

 tlie vicinity of Sapporo. They have not been distinguished from each otlier, but 

 have been identified collectively by most of our mycologists to Ph. .^vbcorfioium 

 (Schrank) Wint. But a careful observation has disclosed the fact, that tlie so-called 

 '^Ph. siiheorlicium'" is in reality composed of two distinct species witli a clear line 

 of demarcation between them. I am inclined to consider them as new species and 

 propose to give them the names of Ph. Posae-rugosac and Ph. yezoense. 



Th(i following seventeen species are found in our country : 

 On Potentilla. 



1. Ph. Potentillae (Pers.) Karst. 

 On Posa. 



2. Ph. americmium (Pk.) Diet. 



3. Ph. fusiforme Schroet. 



4. Ph. japonicum Diet. 



5. Ph. Posac-muUiflorae Diet. 



6. Ph. Posae-riigosae n. sp. 



7. Ph. yczoensp. n. sp. 

 On Pubus. 



8. Ph. Barnardi Plowr. et Wint. var. paumloeidare Diet. 



9. Ph. griscmn Diet. 



10. Fli. JietcTOsporum Diet. 



11. Ih. Namhuanum Diet. 



12. Fh. RnU (Prrs.) Wint. 



13. Fh. PuU-Idad (Pei-s.) Wint. 



14. Fh. Ridii-japoniGi n. sp. 



1 5. / h. Puhi-Thvnbrgii Kusano. 



16. I h. Yosiiinagai Diet. 

 On S((ngidsorba, 



17. Fh. carbonariwin (Schlecht.) Wint. 



The materials, on whicli my present study was based, were mostly tlicisi- jireserv- 

 ed in the Hei-barium of our College, which had been most kindly placed at my 

 disposal by Professor Dr. K. MiYABE. Prof. M. Shirat, Prof S. KUSAN(^ and 



