POPULAR FLORA. 



SERIES I. 



FLOWERING OR PH^NOGAMOUS PLANTS. 



Plants which produce real Flowers (or Stamens and Pistils) and Seeds. — 

 See Part I. Paragr. 164, 166. 



CLASS I. — EXOGENS OR DICOTYLEDONS. 

 Stem composed of pith in the centre, a separate bark on the surface, and the 

 wood between the two, of as many rings or 

 layers as the stem is years old. 

 Leaves netted- veined, that is, with some of 



the veins or 

 veinlets run- 

 ning together 

 so as to form 



meSneS OI Exogenous stem or the fim year. 



net-work or reticulations. 



Flowers with their parts most commonly in fives 

 or fours, very seldom in threes. 



Embryo dicotyledonous, i. e. of a pair of seed- 



234 335 



234, 235. Morning-Glory ; 



232. Netted-veined learei of Maple. Embryos of, 033. Sugar-Mapte ; 234, 235. Morning-Glory ^ 238. Cherry. 



leaves, or in the Pines and the like often polycotyledonous, that is, of more than 

 one pair. — The class may be told by the stems and leaves without examining the 



