126 — FOUNDATIONS OF BOTANY 
flat and then grouped into a sort of cone; in the snow- 
ball each half of the leaf is plaited in a somewhat fan-like 
manner, and the edges of the two halves are then brought 
round so as to meet; in the lady’s mantle the fan-like 
plaiting is very distinct; in the wood sorrel each leaflet 
Fic. 87, I.— Types of Vernation. 
1, 2, Cherry ; 3,4, European walnut; 5, 6, snowball; 7, lady’s mantle; 8, oxalis. 
is folded smoothly, and then the three leaflets packed 
closely side by side. All these modes of vernation and 
many others have received accurate descriptive names by 
which they are known to botanists. 
137. Importance of Vernation. —'The significance of ver- 
nation is best understood by considering that there are two > 
