174 



ELEMENTS OF BOTANY. 



List of Insect-!Fertilized Floweks.i 



1 The plants in this list are arranged somewliat in the order of the complexity of 

 their adaptations for insect fertilization^ the simplest first. It would he well for 

 each student to take up the study of the arrangements for the utilization of insect- 

 visitors in several of tlie groups above, numbered with Roman numerals. The 

 teapjjej: ^ill ftnd explanationp of the adaptatioriLS in the ^orkg cifed by abhreviS'- 



