ECOLOGY OF WOODLAND PLANTS. 349 
development of Bracken, it is, except for a few patches, eut 
out to the north by deep shade. Here, with deeper humus 
and therefore with increased moisture, the tendency is for the 
Mesophytes to ascend above the limit of the shales, and in 
the area indicated, where normally we might expect a xerophytie 
undergrowth, the deep shade of the beeches is such that Scilla 
DTI mt anf sca pt 
Meso Pteris dominant, 
HS detu eris dominent 
xxx Qunplrts dominant. Deschampsia 
xxx | with Calluna „Erica , Vaccinium, etc. 
ANAN Scilla festalis dominant. 
eee eee 
(a very attenuated form) is the only plant in possession of the 
ground. 
Old Spring Wood has been greatly disturbed by quarrying 
operations &c., but in spite of great interference by man the 
dominant plants are those characteristic of the plateau. 
LINN. JOURN.—BOTANY, VOL. XXXVII. 2c 
