114 H. MØLHOLM HANSEN 
atilis. Of more or less importance are Polygonum viviparum, Cala- 
magrostis neglecta, Equisetum arvense and E. variegatum, Cardamine 
pratensis, Thalictrum alpinum, Luzula spicata, Festuca ovina, F. rubra, 
and Saxifraga Hirculus. 
The Carex rariflora Myri. Cf. fig. 22 and table 24A, 5-9. 
On still damper ground the knolls disappear and with them a 
number of species, so that the species now only number 11.2, while 
the density of species is 4.7. The geophytes, comprising especially 
Cyperaceæ, form the bulk of the vegetation. The G percentage is 
70.5, the HH percentage 4.2, the Ch and H percentages 14.1 and 11.1 
respectively. The species group spectrum shows the peculiarity of 
a rise in the A percentage from 56 to 66 caused by a great rise in 
the A2 and A 1 percentages; the A 3 percentage, on the other hand, 
is still reduced. The dominant species are Carex rariflora and Erio- 
phorum polystachyum, also, in spots, Carex chordorrhiza and C. ro- 
strata. Other frequently occurring plants are Polygonum viviparum, 
Salix glauca, and Cardamine pratensis. 
The Eriophorum polystachyum Flöi. Cf. Table 24 A, 10—13. 
On the flöi, the dampest soil clothed with plants, knolls are 
likewise absent, the ground is swampy as in the lowland flöi, and 
not firm enough to walk on. The succession of changes in number 
of species, density of species, biological spectrum and species group 
spectrum in the myri formations here reaches its climax, as was 
also the case in the lowland flöi. 
The sole dominant here is Eriophorum polystachyum, here and 
there a few myri plants occur such as Carex rariflora, C. chordor- 
rhiza, C. rostrata, C. saxatilis, Polygonum viviparum, Salix glauca, 
and Calamagrostis neglecta. 
The Geiri Vegetation. Cf. table 25 A, 1—6 and figs. 23—25. 
On slopes with a southern, western, and northern exposure a 
special vegetation, the snow patch or geiri vegetation, may be met 
with. Its peculiarities are conditioned by a deep and constant snow- 
covering in the winter. The snow falls early on these areas, covers 
them without intermission throughout the winter, and only melts 
well on in the spring. 
The snow patches occur in two different forms. Most frequently 
the snow lies in long narrow bands on the southern, western, and 
