HOWARD AND HOWARD. 59 
As it appeared probable that natural crossing occasionally 
takes place in warm countries, we have paid considerable attention 
to this point in India. In the pure culture plots. at Pusa, many 
hundreds in number, during the last three years no cases of natural 
crossing have so far been discovered. 
At Lyallpur, however, the results were quite different. Of the 
single-ear cultures, sown in 1906, four proved to be natural crosses. 
Three of these ears were collected on the Lyallpur Farm in May 
1906, one was found in the collection of U. P. wheats from Saharan- 
pur sent to us by Mr. H. M. Leake. We had no suspicion of any of 
these wheats being natural hybrids when they were sown, but con- 
sidered they were rare types of wheat in cultivation. 
In the plot of Safed Ghoni (a smooth white beardless wheat) 
at Lyallpur in 1906, two white felted, slightly bearded, red grained 
plants were noticed. These were sown from single ears in 1906, 
and in 1907 both gave rise to mixedofispring. The first, labelled 
P 145 A, gave rise to felted white chaff plants with red grains. 
Five plants were bearded, five were slightly bearded and two 
were beardless. In 1908 they split up still further. 
145 ae 
Fettep Waite CHAFF, SLIGHTLY BEARDED. 
(PARENT EAR) 1906. 
| 
| 
5 felted white chaff 5 felted white chaff ney 2 felted white chaff 
bearded 1907. bearded 1907 beardless 1907. 
The other plant, P 146 A, also split up into bearded and_beard- 
less smooth and felted in 1907 and still further in 1908 :— 
iP? 1465088 
Wuite CHarF, FELTED, SLIGHTLY BEARDED, (PARENT EAR), 1906. 
| 
| 
| | 
Smooth white chaff. Felted white chaff. 
| | 
ess 
| | | 
2 bearded 3 slightly 1 beardless. 5 bearded. 17 slightly 6 beardless. 
1907. bearded. 1907. 1907. bearded. 1907. 
1907. 1907. 
