142 МВ. А. BARCLAY ON THE LIFE-HISTORY 
worthy ofnotice. Тһе peridium, which is white, bursts at its summit stellately, allowing 
the orange-red secidiospores to fall out. 
At the same time I observed that several of the patches on all the above-named parts 
were dark-brown instead of being reddish yellow. І at first thought these were simply 
shrivelled-up old æcidial patches, but an examination of them with a field lens showed 
that although they were evidently old æcidial patches, the peridia were not collapsed or 
empty, but filled with dark brown spores. І therefore carefully collected a number of 
these dark patches, and on my return to Simla submitted them to microscopic examina- 
tion, which revealed the extraordinary fact that the old ecidial cups (peridia) now con- 
tained masses of single-celled teleutospores (Uromyces). Although I looked most care- 
fully for uredo pustules, I never found any, so that I had apparently an autcecious 
Uredine before me, in which the formation of uredospores has been entirely thrown out, 
without any detriment to the diffusion of the fungus, for this was extraordinarily abun- 
dant on affected bushes. 
During September the further formation of æcidia ceases, and the peridia, becoming 
filled with teleutospores, remain dormant until the next rainy season sets in, %. e. for 
nearly nine months, for the ZEcidiwm is produced only during very moist weather. 
When I first found this fungus the season was too far advanced to attempt any culti- 
vation “experiments, but I preserved the teleutospores I had gathered for use during the 
following year, and I lost no time in at once observing the mode of germination of the 
weidiospores. And this also, as will be more fully explained later, showed that the 
fungus was remarkably unlike any other ZEcidium hitherto described. 
From the fact that the teleutospores are formed within the peridia, and only there, 
it was almost certain that the parasite was an autcecious one, but it was nevertheless 
desirable to put this question to experimental test, and thus beyond all doubt. I con- 
sequently began early next spring to lay the teleutospores I had gathered and preserved 
during the winter on the leaves of wild plants collected in the woods about Simla, and 
which I supposed were of the same species. То my great disappointment, none of these 
experiments succeeded, although cultivation showed that the teleutospores had retained 
their vitality perfectly, germinating in water with great freedom. I at first attributed 
my failure solely to the fact that my inoculations were all praetised at that early time 
of the year on old leaves, whilst, as I have already stated, in nature only the newly 
unfolded leaves are attacked. At the same time I never felt certain that the host with 
which I experimented was identical with the host I found bearing the Zcidium at Sairi, 
although superficially there appeared to be no difference between them, except that the 
leaves of the latter are thicker than those of Simla plants. I therefore sent specimens 
of the host I was experimenting with to my friend Dr. D. Prain, of the Calcutta Botanic 
Garden, who confirmed my doubt by naming the species J. officinale, L. Fortunately, 
very early in spring I collected some cuttings from bushes of Jasmine near Sairi, and 
two of these took root in pots kept in a sheltered place. These cuttings were carefully 
selected and were quite free from any previous attack. They put out a few delicate new 
shoots early in August, which unfolded several leaves later. Тһе cuttings had been 
