01 



(3) As to the formation of the teleutospores: 



In Ampclopsis hdrr<>i,!rjlla , teleutosori are formed mostly surrounding 

 a single urcdosorus, united together into one mass, but this character is not 

 constant; in many cases- we met with the teleutosori formed quite indepen- 

 dent of the uredosori. In the case of Purthcnorl^ns f,-iv>i*pv1<tlu., teleu- 

 tosori are formed separately, independent, of the uredosorus, but we do 

 not fail also to find some teleutosori which surrounding the uredosoi us ; 

 which in litis Coignetia- and vim f era, it is intermediate, both cases 

 occurring indiscriminately. Sometimes it happens that two or more groups 

 of teleutosori unite into one larger patch including 2 or 3 uredosori among 

 them. 



These minor variations resulting from the difference of the host, I 

 think, are not suflicient to distinguish species, it is rather proper to regard 

 them as the forms of one species, Phantom Atupdopsidiv Diet, et Syd. 



species., we lane alJgood reason te^ claim that one on wild and cultivated 

 grapes is another independent species ; but to confirm this fact more deci- 

 dedly, we must refer to the infection experiments. 



For the present, however, it is advisable to include these forms under 

 one species rather than to split it into several species baaed on small dif- 

 ferencee which in fact fade into each other by intermediate forms. 



By the kindness of Mr. 8. Kusano, I obtained a specimen of Phacop- 

 8ora on Vitus flexuosa Thuub. The teleutospores are formed in minute 

 punctiform, dark-brown or almost black spots, irregularly grouped together 

 on the under surface of the leaf, quite independent of the uredosori. I 

 failed to find out the uredo in the specimen, but from the nature of the 

 teleutospores, I am inclined to think that it must also be included in the 



As regards the formation of the teleutospores, we agree with Dietel 

 that they are not formed by transverse divisions of a tubular cell as it is 

 the case "with Coieoq.ori.itn. but by the successive formation of spores from 



