

Wild Lettuce 



A comparison between this and the large leaved, compact, 



salad plant of our gardens shows the wonders of adaptation 



which cultivation works. This wild lettuce is known in some places as 



the "compass plant" because of the fact that its leaves, instead of 



fanning out in all directions from the stalk, point always 



north and south an adaptation, no doubt, to protect 



the plant from the heat of the mid-day sun. 



