° The Flora of Disko Island and Adjacent Coast of West Greenland. 45 
Mainland: The westeoast of Nigssuaq peninsula and the Waygat-coast down 
to Paotat 70°12° rather common (P.). 
Decidedly a northern type having its south-limit at the men- 
tioned localities. 
Abundantly flowering and fruiting. 
Probably sometimes snowless during winter. 
| 52. Puccinellia phryganodes (Trin.) Scripn. & MERR. 
(Catabrosa rilfoidea 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 places it forms a sort of marsh (PorstLp: 
Medd. om Grld. 65 p. 194, 217, Fig. 16. Résumé franeais p. 290, 299). 
Great areas are here 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 (Curr.) Hotms. apud LinpMan: 
Svensk Fanerogamflora 1918 p. 97. 
In Ostenvetp: Flora Aretica p. 127 GELER?, united a consider- 
able number of Puecinellias, discerned by Lance. under the name of 
Glyceria distans (L.) Want. But according tc HotmBera’s investiga- 
tions this is erroneous, as the true Puceinellia distans (L.) Parl. does 
not oecur at all in Greenland. Some of the plants, ceferred by GreLerr 
and authors following him to this species, belong in fact to P. retro- 
flera (Curnt)) Hotme. or rather to a subspecies borealis Holmb., still 
unpublished. 
Of this new subspecies | have seen several sheets in H. H., labelled 
by Dr. Hotmeerc. According to that material the range of the plant 
will lie between the extreme south of Greenland and the southern parts 
