PART FIRST, 



STRUCTURAL BOTANY; OR, ORGANOGRAP1IY. 



CHAPTER I. 



PRIMARY DIVISIONS OF THE VEGETABLE KINGDOM. 

 65. TWO NATURAL GRAND DIVISIONS OF THE VEGETABLE KlNGDOM 



have long been recognized by botanists, viz., the Phsenogamia or 

 Flowering Plants ; the Cryptogamia, or Flowerless Plants. Besides the 

 obvious distinction made by the presence and absence of the flower, 



Bose (flowers double) an Exosren. 3, Lily an Endosr'en. 4, Torn an acrogeB<m 

 Cryptogam. 5, Lichen a thallogenous Cryptogam. 



