270 MorTEN P. PorsiLp. 
In this connection I may refer to the quite analogous facts, 
recently described by Simmons from different small islands at the 
head of Jones Sound (Ш. pp. 10—21)." The islands Castle Island and 
Devils Island have a very poor flora on account of the currents 
preventing the occurrence of a continuous ice-covering upon the 
very narrow straits separating them from the mainlands, whilst 
North Kent has a considerably richer flora although the separating 
belts are far wider, but icebound during winter. 
Northern and southern Types of the Flora of Hare Island, 
Of the 112 known species of Vascular Plants from Hare Island‘ 
the following are: 
Northern Types. 
a) With southern limit on 
Disco. 
Arctagrostis latifolia 
Glyceria Vahliana 
Erigeron compositus 
Erigeron eriocephalus 
4 
b) With southern limit on 
the Continent a little south 
of Disco. 
Aira caespilosa var. pumila 
Alopecurus alpinus 
Glyceria anguslata 
Carex misandra 
— aquatilis var. stans 
Ranunculus sulphureus 
— nivalis 
Arenaria ciliata var. humifusa 
Melandrium apetalum 
Draba alpina 
Potentilla emarginata 
= Vahliana 
— pulchella 
Pedicularis lanata 
14 
Southern Types. 
a) With northern limit on 
Hare Island. 
(about 70° 22’). 
Carex salina var. 
Potentilla alpestris - 
Veronica alpina 
3 
b) With northern limit on 
the Continent a little north 
of Hare Island. 
Poa alpina | 
Calamagrostis neglecta 
Festuca rubra 
Juncus arcticus 
—  castaneus 
—  triglumis 
Thalictrum alpinum 
Cerastium trigynum 
Sibbaldia procumbens 
Campanula rotundifolia 
Erigeron uniflorus 
' When my friend Dr. Simmons wrote and published his paper, I was in Greenland, 
and therefore we have made the same observations independently of each other. 
