38 H. MØLHOLM HANSEN 
phorum polystachyum, and in the fétmyri Carex Lyngbyei. Of other 
plants it is mostly Cyperaceæ which are found intermixed with 
Equisetum palustre, thus species like Eriophorum polystachyum, Carex 
Goodenoughii, C. rariflora, C. microglochin, C. capillaris, C. panicea, 
and C. chordorrhiza, besides Scirpus cespitosus. Other more conspi- 
cuous plants are Polygonum viviparum, Thalictrum alpinum, Luzula 
multiflora, Bartschia alpina, Tofieldia palustris, Pinguicula vulgaris, 
Selaginella selaginoides, and Equisetum variegatum; of Ch only Vac- 
cinium uliginosum occurs with any noticeably high F.- percentage. 
Locality No. 2 represents the typical, i. e. the most widespread 
halla myri formation; No. 1 is from a somewhat high level, Nos. 4—5 
from rather damp soil. If the water in the depression is stagnant, 
Carex rariflora will be the physiognomical dominant (cf. No. 4), if 
it contains running water, Carex Lyngbyei will dominate, perhaps 
in company with Eriophorum Scheuchzeri (cf. Nr. 5). The two for- 
mations can be recognised, even at a distance, by their colours, the 
Carex rariflora formation by a darkgreen hue, the Carex Lyngbyei 
formation by its yellowish green tinge. The surface differs from 
the typical formation by being devoid of knolls. 
Where springs are formed in the halla myri, a moss vegetation 
will develop. On this vegetation, the dy, Helgi Jonsson writes 
as follows (1900, p. 25): — “the moss pools occur most frequently 
at the foot of the mountains where the numerous springs appear; 
here they pass imperceptibly into the myri.” “The mosses which 
seem to predominate are Philonotis fontana and Mniobryum albicans 
v. glacialis.’ “Scattered here and there in the moss carpet there 
occur Epilobium alsinefolium, E. Hornemanni, Cerastium trigynum, 
Montia rivularis, Saxifraga rivularis, Ranunculus hyperboreus, and 
Catabrosa aquatica. In addition there occur Epilobium palustre, FE. 
lactiflorum, Eriophorum Scheuchzeri, Carex cryptocarpa, C. canescens, 
Eriophorum angustifolium, Equisetum palustre, Carex rariflora, Me- 
nyanthes and Saxifraga stellaris. 
The mosses are exclusively dominant; the intermixed species 
are both few and far between.” 
The förmyri is only found at the bottom of the valley. An es- 
sentiel difference between halla myri and förmyri is this that Equi- 
setum palustre is lacking in the förmyri, Betula nana in the halla 
myri. The most conspicuous plants are Eriophorum polystachyum, 
Vaccinium uliginosum, and Betula nana, further Carex Goodenoughii, 
rariflora, saxatilis, and dioica, besides Polygonum viviparum and 
