The Flora of Disko Island and Adjacent Goasl of VVest Greenland. 43 



Mainland: The vvestcoast of Nugssuaq peninsula and the Wayg-at-coast down 

 to Paotut 70°12° rather common (P.)- 



Decidedly a northerii typo having- its south-limit at the men- 

 tioned localities. 



Abimdantly flowering and Iruiting. 

 Prohably sometimes snowless diiriiig winter. 



I 52. Puccinellia phryganodes (Trin.) Scribn. & Merr. 



(Catabrosa rilfoidca Anderss. ). 



On moist sand and clay at the sea-shore; in the Basalt- and Sand- 

 stone-domains, for instance, within the dunes of the beach along the edges 

 of lagoons; on alluvial formations at the mouths of rivers in the interior 

 of the fjords. It attains to its highest development when regularly inun- 

 dated by the tide, and in such piaces it forms a sort of marsh (Porsild: 

 Medd. om Grld. 65 p. 194, 217, Fig. 16. Resumé frangais p. 290, 299). 

 Great areas are liere covered by its trailing shoots and these form a 

 low, but often very dense, purple-greenish carpet. In this condition 

 it is always sterile. But when the sand-drifts arrive, the ground is raised 

 so much as to prevent the high-water from but occasionally reaching 

 it, the vegetative power is ceasing, and then, as a rule a few flower- 

 ing specimens are to be found at the margin of the carpet. Appar- 

 ently much rarer on the gneiss-coasts. When the rocks are falling straight 

 into the water there will not be any room for the plant, but in the smal- 

 lest inlet, with but the slightest trace of sand or clay, we need not 

 search it in vain. 



Very common throughout the whole area. 



Widely distributed in Greenland without southern — and no 

 doubt without northern limit too. 



Always covered by snow and ice in the winter. 



A 53. Puccinellia retroflexa (Curt.) Holme, apud Lindman: 



Svensk Fanerogamflora 1918 p. 97. 



In Ostenfeld: Klora Arcticu p. 127 Gelert, united a consider- 

 able number of Puccinellias, discerned by Lange, under the name of 

 Glyceria distans (L.) Wahl. But nccording to Holmberc/s investiga- 

 tions this is erroneous, as the true Puccinellia distans (L.) Pari. does 

 not occur at all in Greenland. Some of the piants, referred by Gelert 

 and authors following him to this species, belong in faet to P. retro- 

 flexa (Curt)) Holmb. or rather to a subspe^nes boreaJis Holinb., still 

 unpubhshed. 



Of this new subspecies 1 have seen several slieets in H. H., labelled 

 by Dr. Holmberg. According to that material the range of the plant 

 will lie between the extreme south of Greenland and the southern parts 



