72 POPULAR FIELD BOTANY. 
bricated all round with scales, each enclosing a single flower. 
Fertile flower double, the outer inferior part of one leaf deeply 
divided; finally enlarged, permanent, and forming the green 
covering of the nut. Fruit, a hard nut. 
CoRYLUS AVELLANA. Common Hasel-nut. Another tree, 
equally well known, which now shows its curious catkins in 
almost every hedge row. The leaves are rather round, 
heart-shaped, light green, downy, and pointed. The generic 
description fully characterises the flower. It is a small 
bushy tree, with many light branches. The wood is 
valuable for fires, and makes good charcoal for drawing. 
The nuts are well known, and are eaten by squirrels, hogs, 
and other animals. We derive the name from our Saxon 
ancestors, who called the nuts Hasel nutu. 
——- 
Dia@cia. DIANDRIA. 
MoNOCHLAMYDER. SALICACES. 
SALIX. (WIztow.) 
This very difficult and extensive genus can only be slightly 
mentioned in a work of this kind. There are upwards of 
seventy species, and all extremely difficult to describe and 
determine. The wood is very valuable for many purposes, 
