262 МВ. В. S. ADAMSON І АХ ECOLOGICAL STUDY 
Other commonly occurring species are :— 
Anemone nemorosa ........ о Campanula Trachelium... lo 
Ranuneulus Ficaria у. 0 where light sufficient. 
Viola Riviniana .......... 0 Serophularia nodosa ...... г 
V. sylvestris ....... MM 0 Nepeta hederacea ......... 0 
Geum urbanum a.. 0 Ajuga reptans 22... 0 
Fragaria тез... .... 028 Valeriana officinalis ...... | 
Potentilla sterilis 2... о Рите її. 550... о 
Rubus cesius о... la Orchis mascula ......... 2 о 
Rosa arvensis ...... esses. A Набепата virescens ...... r 
Epilobium montanum ...... © Paris quadrifolia ......... 0 
Pimpinella magna ......... m Agrostis vulgaris ......... lo 
Arctium nemorosum......... 0 Calamagrostis Epigeios ... vr 
А. MINUS usse sss o C. lanceolata ие 
Mosses are less abundant than in the Spirea Ulmaria Society, chiefly owing 
to the ground being more occupied. 
The most abundant are :— 
Fissidens tawifolius ......... о | Brachythecium velutinum... 0 
Barbula ЈаШал. а. о | Eurynchium prelongum ... 0 
В. unguieulata. ............. 200 | Hypnum cupressiforme ... 0 
Mnium undulatum | ......... a | I molluscum а. r 
Thuidium tamariseinum ... o | Hylocomium triquetrum ... 0 
Brachythecium rutabulum.. a 
This society has an average summer water-content of 39 per cent. The 
growth in summer rises to a height of 3-5 feet. Occasionally Deschampsia 
cespitosa is almost absent with similar light and water conditions. The 
associates are the same. 
As in the Spirwa Ulmaria Society so here, there are hollows with a much 
more marshy vegetation; these parts have a high water-content, averaging 
43 per cent. in summer. 
Deschampsia cwspitosa is rather less prominent, Rubus cwsius is more so, 
and, with the Spirra Ulmaria, there are in addition :— 
