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NOTES ON UROMYCES AMYGDALI, COOKE, 
to the numerous pustules, which contained teleutospores as well 
as uredospores (fig. 1 2). Curiously enough the almond leaves 
sent in June from Ardmona in the Goulburn Yalley contained 
only uredospores and these sparingly, while almond leaves from 
Netherby in the extreme west of the Colony, but practically in 
the same degree of latitude, contained both uredospores and 
teleutospores in abundance. 
After diligent search in the Royal Horticultural Gardens, 
Burnley, I cannot find any trace of the fungus on the almond 
leaves there, and nine different varieties are grown. 
From a comparison of the uredospores and teleutospores on the 
above different species of Pruuus, there can be no doubt of their 
identity or of their being Puccinia pruni, Pers. 
Further, the summer-spores (uredospores) are produced in great 
profusion, commencing as a rule in December and January, 
succeeded by the winter-spores (teleutospores) in May and June, 
which represent with us the end of autumn and the beginning 
of winter. In the uredospores the apex is not perforated by a 
single germ-pore as in Uromyces, but there are at least two lateral 
germ-pores. The teleutospores as noted in the British species 
are apt to separate at the septum, so that numerous unicellular 
spores are often to be seen, which might easily on a cursory 
glance be mistaken for something else. Hitherto the teleutospores 
are to be found most plentifully on plum leaves in Victoria, and 
much more sparingly on the others. 
Germination of Spores. 
Both uredospores and teleutospores have been kept for some 
time in a moist chamber and only uredospores have germinated. 
This is in keeping with what we already know of this fungus, 
that it belongs to the group Hemipuccinia, having uredospores 
and teleutospores, the latter only germinating after a period of 
rest. No nutritive solution was used to stimulate germination, 
only water (fig. 13). 
There was an average temperature of from 10° to 12° C. 
The fate of the teleutospores has not yet been traced. As show- 
ing the practical importance of studying the life-history of these 
