OF LEAVES. 
rest The pitcher-plant is a native of Ceylon, where it is calleo 
monkey-cup, on account of its being frequented by these animals for 
th(; purpose of quenching their thirst. 
Compound Leaves. — When spveral leafets grow on Oiie petiole, the 
whole is termed a compound leaf, as in the rose. 
Fiff. 17. 
Pinnate ; Fig. 47, a, represents the petiole or principal leaf stalk 
bearing leafets arranged opposite to each other ; these may be either 
petioled or sessile. 6, b, represent the stipules, the whole taken to- 
gether forms one compound pinnate leaf The term pinnate is from 
the Latin pinna, a wing or pinion. 
Binate ; when two leafets only spring from the petiole, as in Fig. 
47, c. 
Ternate ; when 
b c three leafets arise 
from the petiole, as 
Fig. 48. 
Fig. 48, a. Biternate 
second division 
threes, as Fig. 
Triternate is 
a third division of 
threes, as Fig. 48, c. 
Decompound, when a pinnate leaf is again divided, or has its leaves 
twice compound, 
^'^S- b ti0 ^- 
' ^' ' ' a representa- 
tion of tri-com- 
pound leaves. 
We shall now 
add some miscella 
neous examples of 
various kinds of 
leaves for the ex- 
amination of the 
pupil. 
Fig. 50 at a, is a leaf of the Ilex aquifolium., (holly ;) it is oval and 
dentate, with spinescent teeth. 
b, is a leaf of the Malva crispa, (mallows ;) it is seven-lobed, crisped 
or irregularly platted, and finely crenulate. 
c, is a leaf of the Hydrocotyle tridentata ; it is cuneiform^ dentate al 
the summit. 
d, is a leaf of the Cor chorus japonicus ; it is oval-acuminatCj doubly 
denticulate. 
Compound leaves- 
oound — Size of iectves- 
-Pinnate — 'Binatf 
-Explain Pig. 5C. 
-Ternate— Biternate— Triternate — ^Decoaa- 
