PIIEFAGE 



TO 



THE SECOND EDITION 



In preparing this edition for the press but few changes 

 have been made. The chapters on morphology have been 

 revised and in some parts compressed. The section on the 

 iniiorescenee has been rewritten and that on the sexual 

 reproductive organs has been rearranged in view of two 

 years' experience in teaching my classes at Bloomsbury 

 Square, since the adoption of this manual as the text- 

 book there. 



Book II. remains practically the same as in the first 

 edition. 



J. EEYNOLDS GEEEN. 



Cambkidge : May 1897. 



