52 
HOW PLANTS GROW. 
Interruptedly pinnate , when some of the leaflets of the same leaf are much smaller 
than the rest, and placed between them, as in the Water Avens. 
Abruptly pinnate, when there is no odd leaflet 
at the end, as in Honey-Locust, Fig. 130. 
Odd-pinnate , when there is an odd leaflet at 
the end, as in the Common Locust (Fig. 128) and 
in the Ash. 
Pinnate with a tendril , when the footstalk is 
prolonged into a tendril, as in Fig. 129, and all 
of the Pea tribe. 
148. Pinnate leaves may have many or few 
leaflets. The Bean has pinnate leaves of only 
three leaflets. 
149. Palmate leaves generally have few 
leaflets ; there is not room for many on the 
very end of the footstalk. Common Clover 
has a palmate leaf of three leaflets (Fig. 
136) ; Virginia Creeper, one of five leaflets 
(Fig. 72), as well as the Buckeye (Fig. 131) ; 
while the Horsechestnut has seven, and some 
Lupines from eleven to seventeen. 
150. Twice or Thrice Compound Leaves are 
not uncommon, both of the pinnate and of 
the palmate sorts. While some leaves of 
Honey-Locust are only once pinnate, as in 
Fig. 130, others are doubly or twice pinnate, 
as in Fig. 132. Those of many Acacias are 
thrice pinnate . Fig. 133 represents one of 
the root-leaves of Meadow-Bue, which is 
of the palmate kind, and its general footstalk 
is divided into threes for four times in suc- 
cession, making in all eighty-one leaflets ! 
When a leaf is divided three or four times, 
it is said to be decompound . This is ter- 
nately decompound, because it divides each 
time into threes. 
132. A twice-pinnate leaf of Honey-Locust 
