160 Mr Trevelyan on the Vegetation and Temperature 



Caryophyllace^; 



Sagina procumbens 

 Alsine media 

 Cerastium alpinum 



/3. glabratum, 

 FI. Dan. 979. 

 latifolium 

 vulgatum 

 viscosum 

 semidecandrum 

 Spergula saginoides 

 arvensis 

 nodosa 

 V101.ACE.E. 



Viola canina 

 palustris 

 tricolor 



PolygalejE. 



Polygala vulgaris 

 Crucifer^. 



Draba incana 

 rupestris 

 verna 



lapponica, De Candolle. 

 Thlaspi bursa 

 Cochlearia anglica 

 danica* 

 officinalis 

 Cardaraine amara 



pratensis 

 hirsuta 

 Arabis petrasa -f- 



alpina. f 1. Dan. 62. J 

 Sisymbrium nasturtium 

 Brassica campestris 

 Bunias cakile 



Pap.werace*. 



Papaver nudicaule § 



Ranunculace.e. 



Thalictrum alpinum 

 Ranunculus glacialis |] 



acris glacialis^ 

 /3. minor 



flammula, var. repens 



auricomus 



hirsutus 



repens 



nivalis 

 Ficaria ranunculoides 

 Caltha palustris 



ACOTYLEDONES. 



EqUTSETACEjE. 



Equisetum arvense 



Equisetace.e. 



Equisetum fluviatile 

 hyemale 

 palustre 

 sylvaticum 

 Marsiliacks. 



Isoetes lacustris 



LVCOPODINE.E. 



Lycopodium clavatum 

 alpinum 

 selago 

 selaginoides 



FiLICES. 



Botrychium lunaria 

 Blechnum boreale 

 Polypodium vulgare 



phea;opteris 

 Aspidium lonchitis 

 filix-mas. 

 Cistopteris fragilis 

 Asplenium tricbomanes 

 filix foemina 

 Hymenophyllum Wilsoni 



CharacevE. 



Chara vulgaris 



HEPATICiE. 



Marchantia polymorpha 



JUNGERMANNIC^. 



Jungermannia tamarisci 

 barbata 

 furcata 

 scalaris 

 emarginata 

 ventricosa 

 nivalis 

 bidentata 

 minuta 

 uiidulata 

 complanata 

 serpyllifolia 

 eoncinnata 

 eordifolia 

 epipliylla 

 violacea 

 asplenioides 

 tridentata 

 cili.aris 

 resupinata 

 dilatata 



Musci. 



Andrffia alpina 



rupestris 

 Sphagnum obtusifolium 



• Generally at the summits of mountains. 



•f- Common among the fine debris on the sides of mountains. 



+ On Kunoe, at 2100 feet. 



§ From the elevation at which this plant occurs in Faroe (nearly 2000 feet), 

 it Would appear that Professor Giesecke was in error, in thinking that he had 

 discovered it at Achil-head, in the north-west of Ireland, in a considerably lower 

 elevation, (see Eng. Bot. Suppl. pi. 2(381,) where he probably mistook for it 

 stunted plants of P. cambricum, which is, I believe, abundant in that locality. 

 P. nudicaule, if growing in Ireland, we should expect to find at a higher altitude 

 than in Faroe. The specimen sent to Dr Hooker, and figured in E. B., is cer- 

 tainly P. nudicaule, but probably from Greenland. 



II On the summits and sides of most mountains, above 1500 feet. 



«! At all heights, at the greatest elevations assuming the form of/?. ftygmcBfi. 



