A NOTE ON INDIAN WHEAT-RUSTS. 
115 
TeleutQspores,-^Sox\ of the same form as the uredosporic ones, 
warm brown, very soon exposed. Spores with long pedicels, which 
are frequently considerably dilated apically, fusiform, slightly con- 
stricted, usually greatly thickened terminally, occasionally obliquely 
truncate, sometimes greatly shortened and rounded, 44'8 x 14*7 ft. 
III. — Ferozepore rust on wheat. 
Uredospores and Teleutospores presenting the features charac- 
teristic of Puccinia ruhigo-vera. 
One peculiarity presented itself in connection with what was 
apparently this form of rust as it occurred at Lahore, the uredospores 
being only feebly echinulate and occurring in two distinct series. In 
one the spores were relatively large, measuring 28*33 x 25*6 ft, and 
were of a pale yellow colour, whilst in the other they were very much 
smaller, measuring only 17*6 X 19*2 ft and were of a brilliant orange 
hue. As there was an entire absence of any teleutospores, it was 
impossible definitely to determine whether, in this instance, the 
species were really P. ruhigo^vera or not. 
IV. — Mogul Serai rust on barley. 
Uredospores^^Soxx narrow, oval or linear, of small size, arranged 
in elongated groups running parallel with the long axes of the leaves, 
very pale ochreous, late in becoming exposed. 
Spores pyriform, with thick, moderately long pedicels, very pale 
yellow, echinulate, germ-pores very obscure, apparently only i or 2, 
24X 17^^. 
V. — Saharanpur rust on wheat. 
Uredospores . — Sori very large, greatly elongated. Spores more 
or less obovate, yellow, with from 9 to 13 germ-pores which are very 
conspicuous and irregularly scattered over the entire surface, measur- 
ing when mounted in Canada balsam 23*2 x 17 f^, but no doubt con- 
siderably larger when in the fresh condition. 
The rust occurring on Launea, and which may possibly be the 
source of the Shibpur rust on wheat, presented the following 
characters : — 
Aecidospores.’~-^^s^\xdi0^^x\6\2L. wide, shallow, deeply immersed, 
situate most abundantly on the lower surfaces of the leaves, but 
also occurring on the upper surfaces and on the axes. Spores 
yellow, almost circular, 20 X 20 to 24 X 24 /x. 
Spermogonit scattered over both surfaces of the leaves. 
