The Flora of Disko Island and Adjacent Coast of West Greenland. 4] 
P. alpina often characterizes rather large areas, but it never forms 
dense associations. 
On favourable spots, ascending the slopes to considerable altitudes. 
Abundantly flowering and fruiting. Viviparous specimens have 
never been seen by us. 
Snow-covered during winter. 
L 47. Poa laxa HaAkENke. 
In Fl. Aret. GeLerr states the distribution of this species as lying between 
60° and 70°!; the sign of ! indicates that he has seen and approved the determination 
of the specimens from within these limits. But in H. H., revised by Geverv, I did 
not in 1910 find any specimens gathered from localities north of 66°55’. I have vari- 
ous specimens myself from the coasts of Disko and Nugssuaq corresponding fairly 
well with the diagnosis of P. lava, but owing to the lack of figures and exactly 
determined Greenlandic material of P. lavituscula LANGE I dare not quite trust these 
determinations, the closely related P. glauca being so very much variable. 
A southern type. 
Abundantly flowering and fruiting. 
Hibernates covered by snow. 
T 48. Poa abbreviata R. Br. 
On barren sand and gravel and newly formed moraine. A high- 
arctic species found a few times in the northmost part ‘of the area. 
Disko: The north-western coast: Igdlorpait 70°5’ (Th. Fr.); the coast of Way- 
gat: Kuaganguaq 70°15’ (Th. Fr.; P.); Asuk 70°10’ (Th. Fr.; P.); Qutdligssat 70° 
(Htz.). 
These localities represent the hnown southern limit in Greenland. 
Here flowering and fruiting. 
No doubt often snowless. 
| 49. Poa glauca M. VaAut. 
On fell-field; gravelly, sandy and stony soil, newly formed mo- 
raine, sand-shores: and dunes, but also to be found under better con- 
ditions, for instance, in manured soil and thus frequent at the settle- 
ments. Varies without limits according to the quality of the place. 
Often forming extensive patches, especially when manured and irrigated 
during the period of vegetation. Not well adapted to forage plant for 
cattle, having only a few leaves and the straw being short, stiff and 
too early ripening. 
Very common throughout the whole area. 
Widely distributed species without neither northern nor southern 
himit in Greenland. 
