POPULAR FLORA. 
SERIES I. 
FLOWERING OR PHHNOGAMOUS PLANTS. 
Prants 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 
h f 230 £31 
meshes 0! 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- 
233 
232, Netted-veined leaves of Maple. Embryos of, 233. Sugar-MapSe ; 234, 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 examining the 
