Fig. 44. 
fig. 45. 
LEAF-FORMS AND FIGURES. 25 
27. The singular leaf of Monk’s-hood ap- 
pears as if gashed with scissors, and may 
be called ddciniate, or gashed (Fig. 43). 
28. The parallel-veined leaves may have 
figures similar to the net-veined, as lanceo- 
late (Fig. 44), orbicular (Fig. 45), cordate 
(Fig. 46), sagittate (Fig. 47), &c.; but the 
most usual form is the dinear, like the Grass 
leaf (Fig. 48), which is long 
and narrow, with sides nearly 
parallel. The sword-shaped 
leaf, or ensiform, differs from 
the linear in having its edges 
vertical, not horizontal as 
other leaves. See the Iris. 8. 
26,27. Pedate? Laciniate? State 
the venation of the above forms. 
28. What is a linear leaf? an en- 
siform? Define the word vertical. 
‘Lanceolate,—Lily of the Valley. Fig. 46. Cordate leaf of Pond-weed. 
Orbicular,—Round-leaved Orehis. Fig. 47. Sagittate ieaf of Arrow-head, 
Fig. 48. Linear leaves of Blue-eyed Grass (Stsyrinchium). 
9 
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