^4 MY STUDIO NEIGHBORS 



tion has again gradually modified in relation to 

 the flower. 



The above work by Darwin was mostly con- 

 cerned with foreign species, generally under arti- 

 ficial cultivation, and so startling were the disclos- 

 ures concerning these hitherto sphinx-like floral 

 beings that a most extensive bibliography soon 

 attested the widespread inspi- 

 ration and interest awakened 

 by its pages. 



But it is by no means nec- 

 essary to visit the tropics or 

 the conservatory for exam- 

 ples of these wonders. Our 

 own Asa Gray, one of Dar- 

 win's instant proselytes, was 

 prompt to demonstrate that 

 the commonest of our native 

 American species might af- 

 ford revelations quite as as- 

 tonishing as those exotic species which Darwin 

 had described. 



During a period of many years the writer has 

 devoted much study to our native species of or- 

 chids from this evolutionary stand-point of their 

 cross -fertilization tendencies. Of the following 

 examples, selected from his list, some are elabora- 



