PART II. 



CLASSIFICATION OF PLANTS. 



1. Extension of the plan of examining Type-specimens to sub- 



ordinate groups. 



2. The specific and generic Names of Plants. Individuals. 



Species. Genera. 



3. The Binomial Method of naming Plants. Diagnostic cha- 



racters. 



4. Arrangement of Genera under superior groups. Subordination 



of characters. 



5. Varieties. 



6. Explanation of the Type-lesson. Necessity for a constant 



reference to Specimens. 



Page 113. 



Examination of Typical species of the principal Natural 

 Orders of British Flowering or Phanerogamic Plants. 

 Deviations from the respective Types and important struc- 

 tural peculiarities are noticed. Economic applications of 

 the species. 



Page 251. 



Flowerless or Cryptogainic Plants. Their principal Types. 



Page 269. 



How to dry specimens for the Herbarium. 



Page 27$. (Appendix.) 



How to describe Plants. 



i. T N preceding chapters we have endeavoured to illus- 

 JL trate the prevalent structure of Dicotyledons and 

 Monocotyledons, by referring to a very limited number 

 of common plants, which we made use of to illustrate 

 different kinds of modification in the various organs, and 

 especially in the parts of the flower. 



