26 E. J. BUTLER. 
No. of plants and : , Date of sowing | Free 
variety. Treatment. | and inoculation. Result. Remarks. 
25 plants of I. | Inoculated with | Sown 17-4-08. | No deatas up to 
arrecta in 2 of | Neocosmospora| Inoculated | March, ’09. 
the control pots | from gram. | 3-11-08. 
of the third ex- | 
periment above. 
About 20 plants of | Sown in soil pre. | Sown 15-11-08. | No deaths up to 
I. sumatrana in viously inocu- July, 08. 
1 pot and about lated with 
25 plants of I. | pigeon-pea Neo- 
arrecta from Java!) cosmospora. 
seed in 2 pots. 
About 20 plants of Ditto. Sown 21-8-07. No deaths up to 
I. sumatrana in November 
| 25th, ’07. 
pot. 
{ = —— ns 
This series appears to give conclusive evidence that Neocosmo- 
spora vasinfecta, though common on the roots of wilted indigo 
plants, is a pure saprophyte on them. 
Gram Wilt. 
The wilt of this crop (Cicer arietinum) occurs in Bengal, the 
United Provinces and the North-West Frontier Province. It is a 
typical wilt, having all the characters of the Fusarrum wilts previous- 
ly described. A severe outbreak was reported from Bannu on the 
North-West Frontier, and the specimens received in June, 1907, 
bore numerous perithecia of Neocosmospora on the roots. The 
wood of the coller and main roots was blackened and on section was 
found permeated by hyphe. Microconidia (Cephalosporium) and 
macroconidia (Fusarium) were found as in the previous cases. 
It is highly probable that the disease is a Fusarium wilt. 
SERIES XIII. 
(a) Gram inoculated with Neocosmospora vasinfecta from 
gram. 
The cultures were part of the regular series mentioned above 
under Series X and bore numerous perithecia. 
The plants were grown in pots, pots, soil and seed being steril- 
ised in the usual way. The first sowmg was made in July, 
