BUDS | 19 
and the wool attached to the leaves are carefully removed, 
the way in which each leaflet is bent on itself is seen vate 
folded like the leaves of a book, as in the Ash. It entirely © 
depends on the state of development of the bud how many 
leaves can be detected, for it must be remembered that the 
growing point in the bud is continually producing new leaves. — 
The separate leaves in a bud may be bent or folded, or 
they may be rolled. In the Ash, the two halves of the leaf are 
merely folded on each other (Fig. 22); in the Sycamore, the 
leaf is thrown into plaits, and is therefore said to be plicate 
(Lat. plicare, to fold). In Apricot, the leaf is rolled from one 
edge to the other, so that one margin is inside, the other out- 
side; this is described as convolute (Lat. con and volvo, to roll). 
The two margins of the leaf may be rolled inwards, as in the — 
Violet, and the leaf is then involute, whilst in the Dock they 
are rolled outwards, and the leaf is therefore revolute. In 
Ferns, the leaf is rolled from top to bottom lengthwise, and is 
said to be circinate, from its resemblance to a crozier. 
As many buds as possible should be examined and drawings 
made of them, in order to get some idea of the great variety 
of arrangement of leaves in the bud. 
