372 Morten P. Porsild 



Gelert (Ostenfeld, Fl. Arct.) records 71° as the northern Hmit 

 оГ the species in West Greenland. It is, however, recorded by 

 Nathorst (N. W. Grønl., p. 41) from Tasiusaq, 73° 21'. The reason 

 why Gelert has not included this must be because he does not 

 credit the determination, and in that case this must be regarded as 

 the northern limit of the species, 



Liliaceae. 



60. To fiel dia palustris Huds. — On heaths and in bogs; 

 common everywhere. 



61. Tofieldia cocci nea Richards. — This plant, for which, 

 for several years I have been vainly searching in dilYerent places, 

 has previously been found only twice in West Greenland. At Igdlors- 

 suit, where Dr. S. Hansen discovered it, it appears to be fairly common. 

 It was also found, but very sparsely, at Sarfarssuit, 71° 73'. 



Having once seen the plant in nature it is not difficult to dis- 

 tinguish it from the preceding, even when barren as usually appears 

 to be the case. For safety's sake I may, however, point out that 

 from both the localities in question flowering individuals were also 

 collected. 



T. coccinea usually forms flat cushions of larger or smaller size. 

 The leaves are more flaccid, broader and darker green than in the 

 preceding species and as a rule they are, so to speak, disorderly 

 bent in all directions, and not as decidedly two-rowed and upwardly 

 turned as in T. palustris. 



Salicaceae. 



62. Salix glauca L. — Common everywhere in all possible 

 plant-communities. At the head of Lakse Fjord, at Orpik, it forms 

 a copse as much as 2 metres in height. 



63. Salix a r с t i с a R. Br. — In bogs and on damp moraine 

 material; common. 



64. Salix herbacé a L. — In bogs and in places where the 

 snow remains a long time; common everywhere. 



Betulaceae. 



65. Be tula nana L. — Common on luxuriant heaths. At the 

 head of the fjords it extends to a height of at least 700 metres above 

 sea-level. In the lowlands its branches project аЬоле the surrounding 

 vegetation of Ericeneœ and Gramineœ , which is highly instrumental 

 in giving the heath a more luxuriant character than it has even in 

 favourable localities near Disco Bay. 



