xvi Contents. 



CHAP. PjWE 



6. Access to Flowers impeded by Parts of the Plant, 



and especially Parts of the Flower, being bent, or 

 dilated, or crowded together, . . .98 



7. Temporary Suspension of the Functions of those 



Parts of the Flower which attract Insects, . 130 



8. Diversion of Visitors from the Flower, . . 135 



V. Concluding Remarks, . . . . 140 



Explanation of the Plates, . . . .152 



Index of the Names of Plants, . I59 



