184 



NEMOPHILA INSIGNIS. 



OlIAl'. V. 



The plants were first measared 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 tho 

 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 for 

 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 LXXIII. 

 Nemopliila insignia. 



