PART FIRST. 



STRUCTURAL BOTANY; OR, ORGANOGRAPHY. 



CHAPTER I. 



PRIMARY DIVISIONS OF THE VEGETABLE KINGDOM. 

 65. TWO NATURAL GRAND DIVISIONS OF THU VEGETABLE KlNODOM 



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, 



8, Rose (flowers double)— an Exocen. 3, Lily — an Endogen. 4. Fern— on acrogesoo* 

 Cryptogam. 5, Lichen— a thallogenous Cryptogam. 



