THE LARKSPUR 225 



The plants can quite readily be crossed, and 

 the seed germinates readily. These experiments 

 have not been carried far enough to produce any 

 very striking results. It is obvious, however, 

 that the morning-glory offers good opportuni- 

 ties for improvement, and the ease with which it 

 can be cultivated makes it a plant that should 

 appeal particularly to the amateur. The wide 

 range of color variation, together with the fact 

 that the colors are fairly fixed in certain varie- 

 ties, make possible crossbreeding experiments 

 that can readily be checked. 



Possibly also it may be feasible to cross the 

 common annual morning-glories with the moon- 

 flowers or with various other members of the 

 genus. The moonflower itself, which produces 

 large white flowers in great abundance, has 

 been greatly improved by selection. 



There is also an interesting Brazilian morning- 

 glory (Ipomcea setosa) with a vine that grows 

 with great rapidity and bears a rosy purplish 

 flower, and a perennial tree morning-glory, a 

 native of Texas, which bears very large light 

 pink flowers in abundance. Indeed the number 

 of species from which selection can be made is 

 rather large, and variation among them suffi- 

 cient to give the experiment in hybridizing ex- 

 ceptional interest. 



Vol. 7 Bur. H 



