MISCELLANEOUS NOTES. 697 



In the months of December 1912 and January 1913 the writer succeeded 

 in germinating the teleiitospores of the supposed Blastospora in distilled 

 water and it became evident that the above idenlitication was incorrect 

 and that the fungus in question is a true Uromyces. A true germ-tube was 

 seen to come out through a germ pore ( see Fig 2 ). 



It may be mentioned in passing that this Uromyces on Jasminum malaba- 

 ricum bears a very close resemblance to Uromyces Hobsoni. Vize ( U. Cunn- 

 inghamianus, Bare. ) on Jasminum grandiflorum. The teleuto and secidial 

 stages agree closely on both hosts, in microscopic characters ( see Figs. 2, 

 3, 4, and 5 ) as well as in the effects produced on the host. There is one 

 striking difference, however. Whereas U. Hobsoni has no uredo stage, as 

 Barclay has proved, the fungus on J. malabaricum shows a uredo stage in 

 association with the teleuto. The writer made several inoculations and 

 cross-inoculations with the different spore forms found on either host, but 

 with negative results. It remains doubtful, therefore, if the fungi on the 

 two hosts are identical and if the uredo stage found on J. malabaricum 

 actually belongs to the Uromyces found on it. The writer had hoped to be 

 able to work out the complete life-history of this interesting fungus and, 

 to settle its relationship with U. Hobsoni, but for some reasons the investi- 

 gation has remained in abeyance for the last few years. In the meantime 

 it is thought fit to put on record the observation ot the germination of the 

 teleutospores which establishes beyond doubt that the fungus is a Uromy- 

 ces and not a Blastospora. 



References. 



(1) Sydow et Butler : "■ Fungi Indies orientalis," Part IV. Mycol. Vol. 

 X., No. 3, 1912. 



(2) Von P. Dietel : " Uredineen aus Japan II " Annal. Mycol. Vol. VI, 

 No. 3, 1908. 



(3) Barclay : '• On the life-history of a remarkable uredine on Jasmi- 

 num grandiflorum" Trans. Linn.. Soc. of London, Vol. Ill, Part II, 1891. 



S. L. AJREKAR, B.A. 

 Agricultural College, Poona, 

 Wth February 1919. 





