118 



VEGETATION OF THE PEAK DISTRICT 



[CH. 



above that altitude and on the limestone plateaux, all three 

 species are only of local occurrence. Thus the calcareous 

 grassland presents a different physiognomy from much of the 

 siliceous grassland, the former having a cleaner aspect and a 

 greener and more regular turf. In addition to the above 

 gregarious plants, many other humus-loving species are absent 

 or almost absent from the calcareous grassland of the slopes of 

 the limestone dales; and the following is a list of such species, 

 omitting the plants of marshy places : — 



Pteris aquilina 

 Nephrodium montanum 



( = N. Oreopteris) 

 Athyrium Filix-foemina 

 Salix repens 

 S. aurita 

 Cytisus scoparius 

 Genista anglica 

 G. tinctoria 

 Ononis repens 

 Lathyrus montanus 

 Polygala serpyllacea 

 Empetrum nigrum 

 Hypericum humifusum 

 Spergularia rubra 

 Potentilla erecta 

 P. procumbens 

 Ulex Gallii 

 U. europaeus 

 Calluna vulgaris 

 Erica cinerea 

 E. Tetralix 



Vaccinium Myrtillus 

 V. Vitis-idaea 

 Scutellaria minor 

 Digitalis purpurea 

 Melampyrum pratense 

 Galium saxatile 

 Scabiosa Succisa 

 Jasione montana 

 Gnaphalium sylvaticum 

 Holcus mollis 

 Aira praecox 

 Deschampsia flexuosa 

 Molinia caerulea 

 Nardus stricta 

 Carex binervis 

 C. Goodenowii 



var. juncella 

 Juncus squarrosus 

 Luzula multiflora 



forma congesta 

 Orchis ericetorum 



On the other hand, the following plants, excluding those of 

 the marshy places (see Chapter VI), are found in some parts 

 of the calcareous grassland but are absent or quite rare in 

 those of siliceous grassland : — 



1. In grassy places: — 



Sedum acre 

 Spiraea Filipendula 

 " Potentilla verna " 

 Agrimonia Eupatoria 

 Poterium Sanguisorba 

 Anthyllus Vulneraria 

 " Trifolium striatum " 



T. fill forme 

 Hippocrepis comosa 

 Hypericum hirsutum 

 Viola hirta (agg.) 

 Daucus Carota 

 Satureia Cliuopodium 

 Origanum vulgare 



