348 MR. T. W. WOODHEAD ON THE 
the steep slopes are covered with fallen blocks of stone, the soil 
contains a considerable admixture of sand and is well drained 
and relatively dry. The Xerophytes are thus carried over the 
shales a considerable distance, thinning out in the moister lower 
parts of the wood. Here, in deeper soil, Bracken no longer 
Fig. 7. 
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-7 
^ Netherton Moor: 
282-7 
" 
' 
` 
i 
D 
D 
- 
(ee ee errr re ee ele 
competes with rhizomatous plants, and thus forms an unbroken 
sheet with mesophyte associates, e.g. Holcus mollis, Scilla 
Jfestalis, Lamium Galeobdolon, &c., a complementary association 
or Meso-pteridetum. This is well seen in Spring Wood. In 
Mag Wood, where the soil conditions are favourable to the 
