Plate IX 



plwU W. li. Crump 



^uercus sessilijtorn, Holeux vwllis, Pteris aquilina. 

 HaaiJaMoor of Pennine (AngiM^. 



Phot W. B. Crinup 



b. (Jiirrcus ses.tiliflora, Vacciniiim ilijrtillus, Deschampsia flexuosa. 

 Hardcastle Crags, Hebden Bridge, Yorlishire, on Millstone Grit. 



Sessile (liikwood association. 



