PART FIRST. 



STEUGTURAL BOTANY; OR, ORGANOGRAPHY. 



CHAPTER I. 



PRIMARY DIVISIONS OF THE VEGETABLE KINGDOM. 



65. Two NAT0RAL Grand Divisions of the Vegetable Kingdom 

 have long been recognized by botanists, viz., the Pba3noganiia or 

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

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



r 1 





fl^ Boae (flowers double)— an Exogen. 8, lilr — an Kndogen. 4, Ft?rn— an acrogeaoui 

 Cryptogam. 5, Lichdh— a tn^togenous Gryptogafn. 



