184 



NEMOPHILA INSIGNIS. 



CHAP. V 



The plants were first measured to the tips of their leaves, before 

 they had flowered and when the crossed were under a foot 

 in height. The twelve crossed plants averaged 11 '1 inches in 

 height, whilst the twelve self-fertilised were less than half of this 

 height, viz., 5 45 ; or as 100 to 49. Before the plants had grown 

 to their full height, two of the self-fertilised died, and as I feared 

 that this might happen with others, they were again measured 

 to the tops of their stems, as shown in the preceding table. 



The twelve crossed plants now averaged 33' 28, and the ten self- 

 fertilised 19-9 inches in height, or as 100 to 60; so that they 

 differed somewhat less than before. 



The plants in Pots III. and V. were placed under a net in the 

 greenhouse, two of the crossed plants in the latter pot being 

 pulled up on account of the death of two of the self-fertilised ; 

 so that altogether six crossed and six self-fertilised plants were 

 left to fertilise themselves spontaneously. The pots were rather 

 small, and the plants did not produce many capsules. The 

 small size of the self-fertilised plants will largely account foi 

 the fewness of the capsules which they produced. The six crossed 

 plants bore 105, and the six self-fertilised only 30 capsules ; or as 

 100 to '29. 



The self-fertilised seeds thus obtained from the crossed and 

 self-fertilised plants, after germinating on sand, were planted 



TABLE LXXHI. 



Nemophila insignis. 



