SUDAN GRASS AND RELATED PLANTS. 1l 
Mr. Edouard Ahnne, president of the Chamber of Agriculture, 
Tahiti, Society Islands, who presented an additional supply of toura 
seed to the United States Department of Agriculture under S. P. I. 
No. 42278, sends the following information about it: ‘This grass 
grows in Tahiti in a wild state, all along the creeks, on the roadside, 
and on the uncultivated lands. The horses and cattle seek for it will- 
ingly when it is young; later, the stem becomes woody and hard.”’ 
Tests of the different forms of Andropogon sorghum verticilliflorus 
indicate that they are of little value in the United States. 
Fic.7,—Two rows of toura grass (on the left) and a row of Sudan grass (on the e right)Chillicothe, Tex., 
September 16, 1915. 
HEWISON GRASS. 
Seed of a wild sorghum (Andropogon sorghum hewisont Piper) was 
obtained as S. P. I. No. 33739 from Sennaar Province, Sudan, through 
R. Hewison, Esq., in 1912. It has stout, rather pithy, slightly sweet 
stems five-eighths of an inch in diameter and 8 to 10 feet high; 
many rather broad leaves; a compact panicle, the base of which is 
inclosed in the sheath; and spikelets which are decidedly pubescent 
and usually reddish in color. This wild sorghum is more limited in 
distribution than the others mentioned and is more nearly like the 
cultivated varieties. (Fig. 8.) It is quite possible that a more 
complete knowledge of this form will show it to be a cross between 
some other wild sorghum and durra. 
In the United States Andropogon sorghum hewisoni is found to 
require a very long season in which to mature and it seems to be of 
little value. 
