112 



VEGETATION OF THE PEAK DISTRICT 



[CH. 



Lathyrus montana 

 Polygala serpyllacea 

 Hypericum pulchrum 

 Viola lutea (local) 

 Veronica officinalis 

 Euphrasia officinalis (agg.) 

 Plantago lanceolata 

 Qalium saxatile 

 Campanula rotundifolia 



Crepis virens 

 Hieracium Pilosella 

 Anthoxanthum odoratum 

 Briza media 

 Carex flacca 

 C. binervis 

 C. pilulifera 

 Juncus squarrosus 

 Luzula erecta 



Mixed Siliceous Grassland 



Bordering on the upper limits of the cultivated land on 

 rough escarpments of the cloughs, and on the outskirts of 

 woods, a type of siliceous pasture occurs which is much 

 richer in associated species than the Nardetum just described. 

 The type of siliceous pasture here referred to is found usually 

 at altitudes below 1000 feet (305 m.), is frequently fenced, and, 

 to some extent, is grazed over by cattle; but it is probable that 

 it has never been ploughed or drained. Many of the species 

 are of local occurrence, and probably represent the remains of a 

 primitive flora which flourished in the open spaces of the 

 aboriginal woods at comparatively low altitudes. The flora of 

 this association has been given by Crump (1904: xli) and by 

 Smith and Moss (1903 : 385), so far as the Leeds and Halifax 

 district is concerned. 



The following list illustrates the wealth in species of this 

 type of siliceous grassland : 



Botrychium Lunaria 

 Ophioglossum vulgatum 

 Pteris aquilina 

 Blechnum spicant 

 Nephrodium montanum 

 Salix caprea 

 S. caprea x cinerea 

 S. aurita 



S. aurita x caprea 

 S. aurita x cinerea 

 S. cinerea 

 S. repens 



Betula pubescens (dwarfed) 

 forma denudata (dwarfed) 

 Corylus Avellana 



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Quercus sessiliflora (dwarfed) 



Rumex Acetosa 



R. Acetosella 



Ranunculus acris 



R. bulbosus 



Cerastium vulgatum 



Stellaria graminea 



Prunus spinosa 



Rubus fruticosus (agg.) 



Potentilla erecta 



P. procumbens 



P. erecta x procumbens 



Alchemilla vulgaris (agg.) 



Rosa canina 



R. tomentosa 



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