The Flora ol' Diske Island and Adjacent Coast of West Greenland. 47 



grains in the spikes during the whole of winter. But an intense and pa- 

 tient search will always result in the tinding of seedlings. 

 Normally only the spikes protrude above the snow. 



XI. Cyperaceae. 



I 62. Eriophorum polystachion L. [E. angustijolium Roth.). 



In nioist uioss-bogs and niarshes along the shores of lakes and 

 brackish lagoons, often in great quantities. 



Very common throughout the whole area, but certainly not a& 

 widely distributed as the following species. 



Very common in Greenland without southern or northern limit, 

 ascends to considerable altitudes just as far as the bogs and pools are 

 thawed up every day for at least a couple of months. even when they 

 are covered with ice during the night. 



F. jerrugineiwt! Bristles reddish, nearly as in E. russeoluw Fr., 

 upwards paler. 



At Oåmavik on the southern side of the Nordfjord I saw a great 

 growth of f. jernigineum^ all the piants of which having rust-coloured 

 bristles. The other species were growing just in the neighbourhood 

 and partly mingled with it, but kept the normal colour of the bristles; 

 1 did not observe any intermediate forms. 



Abundantly flowering and fruiting. 



Hibernates covered by snow. 



I 63. Eriophorum Scheuchzeri Hoppe. 



In localities similar to those of the preceding species, still more 

 common. 



Note: The upper sheaths often somewhat swollen and perhaps this is the 

 reason why such specimens in dried condition have been determined as E. vaginatum 

 L., which species does not occur in Greenland. 



It seenis to be a pathological phenomenon due to the efl'ect of the night-frost 

 in the springtime. Phenomenons similar to this have been observed on various 

 species of the Gramineae 'comp. Fr. Buchenau: 2. Deutsche Nordpolfahrt, II, 1,. 

 Botanik p. 53, who attributes this to another cause). 



Abundantly flowering and fruiting. 

 Hibernates covered by snow. 



A 64. Heleocharis aciciilaris (L. ) R. Br. f. submersa Hi. Nilss. 



Forming carpets at the horders of small, shallow, not qnite dried- 

 up lakes and ponds. 



