54 POPULAR GEOGRAPHY OF PLANTS. 



vulgaris), and in boggy places of the Cross-leaved Heath 

 (Erica Tetralix). On the north-west only of Germany 

 extensive woods of the Oak are met with, composed both of 

 Quercus Eobur and Q. pedunculata. 



In Northern Germany, particularly in Schles wig- Hoist ein, 

 the fields are everywhere enclosed by hedges ; the White- 

 thorn (Crattzgus Oxyacantha] and Privet (Ligustrum vul- 

 gare) here scent the air, mingled with Blackthorn (Prunus 

 spinosa) and the common Hazel-nut (Corylus Avellana). 

 In Prussia, a very peculiar character is given to the great 

 lakes by the thick forests of the reed called Arundo Phrag- 

 mites, which grow round their margins ; it is the same reed 

 the straw of which is often used in England for thatching. 



In the southern part of Germany the noble Spanish 

 Chestnut (Castanea vesca) is one of the most striking fea- 

 tures. In this part of Germany alone, woods of the Chest- 

 nut tree are to be met with ; which elsewhere is only to be 

 seen in gardens and vineyards. The Walnut-tree is begin- 

 ning to be very much cultivated in Bohemia, where the 

 fields may be often seen planted with fruit-trees. In most 

 parts of Germany the fields are unenclosed; it is only in 

 mountainous districts that we usually find them surrounded 

 with a stone fence. 



