12 A CHAPTER TO STUDY, 

Peltate, or Shield-Shaped: when the leaf is orbicular, 
with the petiole attached to the middle. (Fic. 41.) 
Entire Leaves are those in which the margins form an un- 
broken line. (Fic. 35.) 
Undulate Leaves have margins that are wavy. (FIG. 33.) 
Serrate Leaves have margins with short, sharp teeth that 
point forward. (Fic. 30.) 
Crenate, or Scolloped: when the teeth are rounded. 
CFG 238) 5 es 
Incised : when the teeth are coarse and jagged and extend 
deeper into the leaf. (Fic. 34.) 
—_ 
N 
CS 
SS 
= S Z 
FIG. 44, FIG. 45. FIG. 46. 
Lobed: when the incisions extend about half way to the 
midrib ; and in which case the leaf is spoken of as three lobed, 
five lobed, or according to the number of lobes formed. (Fic. 
42.) | 
Cleft : when the incisions reach more than half way to the 
midrib, (FIG. 43.) 
Divided : when the incisions extend to the midrib. 
Compound Leaves have the blade split into separate parts, 
the little blades forming leaflets. When the leaflets are ar- 
ranged similarly to feather-veins they are said to be Pinnate. 
When arranged as the veins in a palmately-veined leaf they are 
Palmate. 
Abruptly Pinnate Leaves are those in which the main 
stalk is terminated by a pair of leaflets." (Fic. 45.) 
