STUDIES ON THE VEGETATION OF ICELAND 23 
Ch Loiseleuria procumbens 
H Luzula spicata 
Lycopodium alpinum : 
Ch Minuartia stricta 
H Phleum alpinum 
Th Pleurogyne rotata 
H Poa alpina 
H Potentilla verna 
K Rhodiola rosea 
Ch Saxifraga aizoides 
Ch Saxifraga Aizoon 
H Sedum villosum 
Ch Sibbaldia procumbens 
HH Sparganium submuticum 
H Stellaria borealis 
H Taraxacum croceum 
H  Thalictrum alpinum 
H Tofieldia borealis 
H Veronica alpina 
Ch — fruticans 
H Viscaria alpina. 
Al. Arctic-Subarctic Species whose Northern Limit in West Green- 
land lies between 60 and 66° N. 
H Alchemilla acutidens 
H Hieracium arctocerinthe 
H == faeröensis H — dovrense 
Ch Arabis petræa H — islandicum 
Athyrium alpestre H = nigrescens 
Botrychium lanceolatum H _ prenanthoides 
H Carex atrata H — strictum 
G —  chordorrhiza Isoëtes echinospora 
HH —  norvegica G Juncus balticus 
G —  sparsiflora G  Listera cordata 
Ch Cerastium nigrescens H Luzula sudetica 
H Cornus suecica H Poa laxa 
Ch Draba rupestris H Primula stricta 
Dryopteris lonchitis Th Rhinanthus groenlandica 
H - Epilobium alsinifolium Ch Sagina Linnæi 
H — Hornemanni Ch Salix lanata 
H — lactiflorum Ch — phylicifolia 
H Erigeron borealis Ch Saxifraga Cotyledon 
H Galium trifidum Ch — hypnoides 
Th Gentiana aurea Th Sedum annuum 
H Gnaphalium norvegicum Selaginella selaginoides 
G Habenaria viridis H  Sesleria coerulea 
H  Haloscias scoticum Ch Silene maritima 
H Stellaria crassifolia. 
E4. European Species whose Northern Limit in West Greenland 
lies north of 66° N. 
H Alchemilla minor 
H Alopecurus aristulatus 
HH Batrachium trichophyllus 
Botrychium Lunaria 
H Calamagrostis neglecta 
HH Callitriche autumnalis 
HH — verna 
H Campanula rotundifolia 
H Cardamine pratensis 
H Carex canescens 
G — dioica 
I Cochlearia officinalis 
HH Comarum palustre 
Cystopteris fragilis 
Dryopteris dilatata 
G Elymus arenarius 
