4 INTRODUCTORY. 
the plants upon which they feed, either above-ground, as Ne: Mi itltoe 
a or they ¢ i 
as in the various root-parasites. Roots branch without any sett toes r, 
i i the 
12. Stem on Ascenpinc Axis. As the nage apaal of the radicle 
urface of th 
the groun ae 
woody near the base it is suffruticose; or when but fitle w heath SU, 
_ cent. Shrubs and Trees ditfer only in size ; those under 15 or 0 feet 
high are bs. The 
hig Cc 
ote stem of grasses is called a Culm. 
16. The Various modifications of the stem and branches have received 
ti ing gees of soe the most used are given here. When the 
lined if it partly 
hee. jor fede  entirel: 
H sebringp fe. 
e Grape vine, or ty oral Ba Mel) the ae like ‘the Ivy, 
