SYSTEMATIC BOTANY. 



PRIMARY ANALYSIS OF FLOWERING PLANTS, 



Angio- 

 sperms 



Dicotyledons 



or Exogens 



Monocotyledons | Su P erior - 

 orEndo S ens - 1 Inferior. 



(_ Flowers imperfect. 



[ Gymnosperms. 



CHARACTERISTICS OF THE NATURAL ORDERS OF 

 FLOWERING PLANTS. 



IN Chapters Eighth to Twelfth it was shown that a natural 

 order may be identified by a few characteristic features, without 

 reference to its entire group of ordinal characters. 



The orders in the following list are first separated into eleven 

 groups, on the basis of characters indicated in the above table. The 

 characteristics by which any order may be known are clearly and 

 concisely given, and they follow each other in a natural sequence, 

 according to their increasing divergence from the ordinal charac- 

 ters of the Ranunculaceag. The same thing is seen in passing frcm 

 first to last through the orders shown on the Botanical Charts. 



