10 BULLETIN 1127, IT. S. DEPARTMENT OF AGRICULTURE. 
This variety matures in approximately 122 days and has produced 
an average acre yield of 2,027 pounds of paddy and 1,191 pounds of 
straw. On the ordinary prairie lands of southwestern Louisiana it 
produced 1,850 pounds of paddy per acre. It grows on very rich 
land without showing a tendency to lodge and has produced acre 
yields under these conditions as high as 3,420 pounds of grain. The 
production of 2,500 pounds of paddy per acre has been reported from 
the Delta lands of the Mississippi River section of Louisiana. 
VINTULA. 
The Vintula variety is a pure-line selection from an unnamed 
variety from Ceylon which was obtained by the United States De- 
partment of Agriculture from the Botanical Gardens, Georgetown, 
British Guiana, where it had been grown experimentally for several 
years. 
The selection was made at the Rice Experiment Station, Crowley, 
La., by the writers in 1911. The name Vintula, composed of the 
first four letters of Vinton, the name of a town in southwestern 
Louisiana, and the abbreviation of Louisiana, with the letter u in- 
serted for euphony, was applied to this selection in 1917. This selec- 
tion was increased from nursery to plat experiments in 1914. The 
plat yields are given in Table 2. The variety was distributed in 
southwestern Louisiana for commercial growing in 1918. Enough 
seed of Vintula (C. I. No. 1241) was grown in 1921 to sow approxi- 
mately 10,000 acres. 
The culms of the Vintula variety are medium in size, green, and 
usually number seven to the plant. Their average height, including 
the panicles, is 51 inches. The culm and sheath nodes are green. The 
auricles are conspicuous and deciduous. The ligules average five- 
eighths of an inch in length. The leaf blades are broad, averaging 
half an inch in width. The panicles, which are more or less open, 
have an average length of 10 inches, and each bears on an average 145 
seeds. 
The seeds (PI. Ill, A and B) average 9.6 millimeters in length 
and 3.1 millimeters in thickness. The glumes are pale yellow and 
have smooth margins. The hull loosely incloses the kernel, is thin, 
and sparingly covered with short white hairs. The apex of the 
hull terminates in two conical light-yellow teeth. These are located 
on the meson, are unequal in length, and slightly bent ventrad. 
The conical lateral teeth usually are absent and when present are 
inconspicuous. 
The kernels (PL III, O and D) average in length 7.2 millimeters, 
in width 1.8 millimeters, and in thickness 2.6 millimeters. Viewed 
laterally, their dorsal and ventral margins are unequally convex, 
the ventral being the less so. Their distal ends are obtuse, but 
sharply curved toward the ventral margin. The opaque area is 
never prominent and when present is narrow and located on or near 
the dorsal margin. 
This variety matures in approximately 123 days and has pro- 
duced an average acre yield of 2,086 pounds of paddy and 1,149 
pounds of straw. It has yielded slightly over 2,000 pounds of 
grain per acre on the lighter prairie soils of southwestern Louisiana 
and has averaged about 4,000 pounds per acre on the Delta lands of 
the Mississippi River section of the State. 
