POPULAR FLOPA 



SEHIES 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^e 

 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 of the first 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- 



. Netted-veined leaves of Maple. Embiyos of, 233. Sugar-Mapie ; 231,235. Morning-Glory ; 



236. 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 g^amining the 



