POPULAR FLORA. 
SERIES I 
FLOWERING OR PELENOGAMOUS 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 
, « 230 231 
meSUeS 01 Exogenous stern 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- 
234 
234, 235. Morning-Glory ; 
236. Cherry. 
232. Netted-veined leaves of Maple. Embryos of, 233. Sugar-Maple ; 
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 
