148 



LUPINUS LUTEUS. 



Chai V 



spontaneously self-fertilised seeds just mentioned, and crossed 

 seeds obtained by intercrossing the two crossed plants of the last 

 generation, after germinating on sand, were planted in pairs on 

 the opposite sides of three large pots. "When the seedlings were 

 only 4 inches in height, the crossed had a slight advantage 

 over their opponents. When grown to their full height, every 

 one of the crossed plants exceeded its opponent in height. 

 Nevertheless the self-fertilised plants in all three pots flowered 

 before the crossed ! The measurements are given in the 



following table : 



Table LII. 



Lupinus luteus. 



The eight crossed plants here average 30 78, and the eight 

 self-fertilised 25*21 inches in height; or as 100 to 82. These 

 plants were left uncovered in the greenhouse to set their pods, 

 but they produced very few good ones, perhaps in part owing to 

 few bees visiting them. The crossed plants produced nine pods, 

 containing on an average 3 '4 seeds, and the self-fertilised plants 

 seven pods, containing on an average 3 seeds, so that the seeds 

 from an equal number of plants were as 100 to 88. 



Two other crossed seedlings, each with two self-fertilised 

 seedlings on the opposite sides of the same large pot, were 

 turned out of their pots early in the season, without being 

 disturbed, into open ground of good quality. They were thus 

 subjected to but little competition with one another, in com- 

 parison with the plants in the above three pots. In the autumn 



