A NOTE ON INDIAN WHEAT-RUSTS. 
107 
examined were any plants unequivocally affected by Dr, Barclay’s 
Puccinia graminis met with, though several good examples of the 
pale rust mentioned as occurring at Mozufferpur wert encountered. 
Among the wheat plants, however, two were obtained that were 
unequivocally affected by the Indian rust supposed to be Pucciniz 
graminis^ showing in long oval pustules oh the underside of the leaf 
Launea asplenifolia was again found to be very local though quite 
plentiful when it occurs. Most cf the plants were quite healthy ; 
one however was manifestly affected on the upper surface of its leaves 
with uredospores exactly like those at Shibpur and Mozufferpur ; 
many had teleutospores ; like the Shibpur plants, usually only on the 
under surface, but occasionally on the upper surface as well ; no 
aecidial fructification was met with. The Launea is here known as 
gobi ; the rust as gerhwi. The name titlia^ used at Mozufferpur 
for Launea^ is here applied to a spurge, Euphorbia dracunculoides. 
At Allahabad, which was next visited, on the afternoon of 23rd 
February it was found that wheat was little grown in and about the sta- 
tion; patches in a few compounds and along a narrow strip on the banks 
of the Jumna below the level reached by the river in the rains, being 
the only places available for search. The wheat and also the barley 
north of the Jumna was all quite healthy. Launea asplenifolia is not 
uncommon in gardens in the station ; it was in every case quite 
healthy. It is here associated wdth another species,, Launea 
nudicauliSj very like it in habit and in general appearance, but with 
much thicker and rather larger leaves '^ely serrate along their 
margins with minute w^hite cartilaginous teeth, with rather larger 
flowers and with an ochre-coloured instead of a pure-white latex. 
This species also was perfectly healthy. On 24th February the area 
across the Jumna was examined. Here wheat was found to be this 
season entirely confined to the strip along the river bank mentioned 
above. It appeared very free from rust ; only one small patch, near 
the upper limit of the belt, was found where about 20 plants were 
affected by the so-called Puccinia rubigo^vera only uredospores 
were present. Associated with this-patch was a single plant very 
considerably affected by the so-called Puccinia graminis 'y* a 
second plant was found some distance off, and close to the water’s 
edge, carrying the same rust. 
Among this wheat no Launea was found ; so soon however as 
the limit reached by the river in the rains was‘"passed, Launea 
nudicaulis was found to be present and to be common. When the 
level ground at the top of the scarp was attained, this species gave place 
to Launea asplenifolia which was found to be plentiful. From this 
