122 



EESEDA ODORATA. 



CHAP. IV 



profit more from a cross, than did the plants of the far more 

 self-fertile English stock. The above two lots of crossed and 

 self-fertilised seeds from the same plant of Reseda odorata, after 

 germinating on sand, were planted on opposite sides of five pots, 

 and measured as in the last case, with the following result : 



TABLE XXXIX. 



Reseda odorata (seedlings from a semi-self-sterile Plant). 



The average height of the twenty crossed plants is here 29 98, 

 and that of the twenty self-fertilised 27 '71 inches; or as 100 to 

 92. These plants were then cut down and weighed ; and the 

 crossed in this case exceeded the self-fertilised in weight by a mere 

 trifle, viz., in the ratio of 100 to 99. The two lots, left freely 

 exposed to insects, seemed to be equally fertile. 



The remainder of the seed was sown in two adjoining rows in 



