APPENDIX. 



I. 



HOW TO DESCRIBE PLANTS, 



When the student has acquired facility in filling up schedules 

 from plants belonging to all the principal divisions of Phanero- 

 gamia, it is desirable that he should proceed to describe 

 specimens more at length, as shown in the following examples. 

 As the principal use of the schedules is to direct the attention 

 to certain important points of structure, care must be taken 

 never to omit reference to these important points in describing 

 plants in this way. If, however, as is best, the description be 

 headed with the CLASS and Division to which the plant belongs, 

 it is not necessary (excepting in Examination exercises) to detail 

 all the characters which are implied by referring it to such 

 Class and Division. The organs must be described ssriatiin 

 in the order of their development. 



ORANGE: Citrus A urantium. 

 Class, Dicotyledons. Division, Thalamiflorae. 



A wholly glabrous evergreen shrub or small tree, with shining 

 simple (unifoliolate) leaves, fragrant white axillary flowers, and 

 globose baccate fruits. 



Extremities smooth, green, glabrous, the internodes ob- 

 tusely angular above ; occasionally armed with short r.traight 

 acute axillary spines. 



K B 



