STUDIES ON THE VEGETATION OF ICELAND 25 
Ch Vaccinium oxycoccus H Viola palustris 
H Vicia cracca HH Zostera marina 
H Viola canina 
E2. European Species absent from Greenland but without any Nor- 
thern Limit in Scandinavia. 
H Agrostis tenuis H Milium effusum 
H Alopecurus geniculatus Th Myosotis arvensis 
H Angelica silvestris G  Orchis maculatus 
H Aracium paludosum H Oxalis acetosella 
Ch Arctostaphylos uva ursi G Paris quadrifolia 
Athyrium filix femina H Parnassia palustris 
Th Cakile maritima H Pirola rotundifolia 
Ch Calluna vulgaris H Plantago major 
H Caltha palustris H Poa trivialis 
G Carex limosa Ph Populus tremula 
H Carum carvi HH Potamogeton perfoliatus 
H Deschampsia cæspitosa H Ranunculus repens 
Equisetum limosum Th Rhinanthus crista galli 
— palustre Ph Sorbus aucuparia 
— pratense Th Spergula arvensis 
Th Erysimum hieracifolium H Spiræa ulmaria 
Th Galeopsis Tetrahit. H Taraxacum vulgare 
H Galium boreale G Trientalis europæa 
H — uliginosum H Trifolium repens 
H  Gentiana amarella H Triglochin maritimum 
H Geum rivale H  Urtica dioica 
H Glaux maritima Th —  urens 
H Hieracium silvaticum Ch Vaccinium Myrtillus 
G  Hierochloë odorata Ch Veronica officinalis 
H Lathyrus palustris H = scutellata 
Th Melampyrum silvaticum H — serpyllifolia 
E1. European Species with a distinct Northern Limit in Scandinavia. 
H Agropyrum caninum Th Crassula aquatica 
G — repens H Epilobium collinum 
H  Anthyllis vulneraria Th Erophila verna 
H Avena elatior H Festuca pratensis 
Blechnum spicant H Fragaria vesca 
H Brunella vulgaris H Galium silvestre 
HH Callitriche stagnalis H — verum 
Th Cardamine hirsuta H  Gentiana campestris 
H — silvatica HH Glyceria fluitans 
G Carex glauca H  Gnaphalium silvaticum 
H — paniculata H Hieracium Schmidtii 
H —  pilulifera H Hydrocotyle vulgaris 
G Cirsium arvense H Juncus lamprocarpus 
