380 Morten P. Porsild 



plants wandered into the copse. The specimens of Empetriim which 

 were occasionally reached by high-water had reddish coloured leaves 

 (Lacouture, Répertoire Chromatique. Paris, 1890, pi. III. Rouge- 

 Orangé ligne horizontale 2, ligne verticale R^ O3), and were also 

 sJiiny. Only the leaves at the very apex of the shoots were normal. 



Hippuridaceae. 



120. Hipp u ris vulgaris L. — In small pools and along the 

 margin of lakes. Lakse Fjord (Orpik), Amitsuarsuk and Safarssuit. 

 It was tlowering and fairly common in the localities recorded. 



The northern limit in West (ireenland, as previousl}' known, 

 was 70° 30', but it extends further north on the east coast. 



In some places the coast had sunk so considerably that high- 

 water from the head of the fjord reached up through the river to 

 some small lakes. There Hippiwis grew between halophilous Carices; 

 this was the first time I had seen this in Greenland (cf. Agnete 

 Seu^elin, Medd. om (irønl., 36, p. 312). 



Pirolaceae. 



121. Pirol a rotundifolia L., var. gran di flor a (Radius) DC. 

 Very common on heaths, rock-ledges and along the margin of copses. 

 Within Lakse Fjord (Orpik) very tall and richly flowering individuals 

 occurred as undergrowth beneath the willows in places where the 

 latter were not standing too close together. 



Ericaceae. 



122. Phyllodoce coerulea (L.) Bab. — In the interior of 

 the fjords on luxuriant, damp and sunny heaths which were snow- 

 covered regularly every winter; was not observed in the coastal 

 districts. 



123. Loisileuria procumbens (L.) Dew. — Fairly common 

 on heaths and on rocks, but never in great abundance. 



124. Rhododendron lapponicum Wahl. — On heaths; 

 common. At the head of the fjords it had somewhat larger leaves 

 and longer years-shoots than elscAvhere. 



125. Ledum palustre L. var. d ecu mb en s Ait. — Common 

 on old heaths and in bogs which are not too wet. At the head of 

 Ihe fjord, in projected localities, there occurred vigorous forms with 

 larger leaves and more richly flowering inflorescences which ap- 

 proached the European form in appearance. Similar forms were 

 gathered by Ryder from as far north as 72° 38' and were determined 

 by Lange to be Ledum palustre L. 



