AN EXPLANATION OF THE ABBREVIATIONS USED 

 IN THE BOTANICAL CHARTS. 



Seven principal references are made with a Capital Letter, to 

 be looked for below each Illustration ; and the subordinate 

 parts are then noted by small letters. A reference within a O 

 implies not magnified ; ( on the left indicates a Longitudi- 

 nal Section, and ^ above, a Transverse. 



