TERMINOLOGY. 
0. 
tn the descriptions of plants it is necessary that 
each part have its particular name, and every variety 
of it be marked by an appropriate expression, that 
it may be known from every other. ‘Thus, in each 
plant the beginner must distinguish the following 
parts: the root (radim), the stem (caulis), the leaves 
(folia), the props ( fulcra), the flower (fos), and the 
fruit (fructus ). 
| § 10. | 
The root (radix), supplies the plant with the prin- 
- cipal part of its nourishment; it is commonly hid 
in the ground, and by it the vegetable is firmly fixed 
in its place. Most plants have roots, and where 
they appear to be wanting, as in some lichens, their 
place is supplied by small tubercles. In general the - 
Musci and Fungi are furnished with roots, though 
this was formerly denied. ‘The slender fibres which 
proceed from roots are called eS (radicula). 
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