POPULAR FLORA. 



SERIES I . 



FLOWERING OR PHiENOGAMOUS PLANTS. 



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

 See Part I. Paragr. 164, 1G6. 



CLASS L — 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 



meshes of 





Mw:!iliiiiH 



230 



Exogenous stem of the first year. 



net-woi'k or reticulations. 



Floivers with their parts most commonly in fives 

 or fours, very seldom in threes. 



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



233 234 235 236 



232. Netted-veined leaves of Maple. Embryos of, 233. Sugar-Map'ie ; 231,235. Morning-Glory ; 236. Chercy. 



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 



