250 Journal of the Asiatic Society of Bengal. [N.S., XIV, 
23 (233/2 5/23. 
|Kind of 928 eee | RES | BBs 
| ou8 | 888 | seg | 283 | 
| SS /as8 2 "1" & | 
14-12-16 Uredo 1 | Upper 1 10 days No sori at inocv- 
i4- 2-16, Uredo 1 | Lower | 0 Do. | _iated spots. 
14-12-16 | Aecidio| 1 Upper; 0 | : 
14-12-16 | Aecidio} 1 | Lower! 0 | Do. Ditto 
10-1--17 | Uredo 1 Upper 1 | 20 days e 
10-1—17 Uredo 1 Lower 0 Do. 
0-117  Aecidio 1 Upper | 1 Dor «i 
0-1—-17 | Aecidio} 1 Lower 0 Do. | 
8-1--17  Aecidio 1 Upper | l 15 days! 
8-1--17  Aecidio 1 Lower | aoe oO. 
—2—17 | Uredo 1 Upper | a, days| 
- 2--17 | Aecidio 1 Upper 1 Douay a ” 
yr Oe eel re Pe ea | 
It is interesting to note that the inoculated spots developed 
no sori even within a month after inoculation although Fe 
sections they were found to be full of fungal hyphar pie ‘i 
branched. The germ tubes in all cases of successful infect! 
sntered through the stomata. 
Another noteworthy fact is that while most of the spots a 
the upper surface of leaves caught infection, there was on 
a single case of infection through penetration from the lowe 
surface. . 
The spores were removed directly from the fructification® 
and carefully examined to avoid all chances of a mixture 
used for inoculations. “di 
The fact, that both uredo and more particularly the act 
spores from Launea are capable of infecting Launwa itself, 
to the strength of the view already established by Dr. Bu 
that Puccinia Butleri is clearly an auteecious fungus. 
The aecidium on Launeea does not therefore belong % ola 
nes rust than Puccinia Butleri found on Launea aspleniif 
itself, : 
Th re is another interesting phenomenon connected " 
this disease, and that refers to the perennial nature of its ot of 
lium. The presence of the mycelium within the roots 
the host, suggests of the possibility of its having some imp? 
part towards the perpetuation of the disease. To pro 
