Rit (Vísindafélag Íslendinga) - 01.06.1975, Page 113

Eriophorum Scheuchzeri, Habenaria hyperborea, Juncus alpinus,
Luzula multiflora, Pinguicula vulgaris, Polygonum vivipannn,
Thalictrum alpimnn, Tofieldia pusilla and Triglochin palustris.
E. angustifolium disappeared almost altogether closest to the moun-
tain where the snow cover remains longer than elsewhere. Analyses
3-6 are from Isafjarðardjúp where the sociation is also widely
distributed, hut it does not cover such large continuous tracts as at
Rauðisandur and Barðaströnd. Analysis 3 is from ögurdalur on
a level stretch. The soil is moderately moist. In shallow depressions
E. angustifolium dominates, whereas Scirpus is predominant on
the low elevations. Analysis 4 is from the mouth of Skjaldfannar-
dalm- by the river Selá. Here the mire is rather wet with small
mounds, a formation approaching that of flói. Analysis 3 is from
Sandeyri where the ground is considerably inclined. The soil is
moderately damp, and the snow seems to lie rather long. Analysis
6 is made on the ridge above Laugaból at an altitude of approxima-
tely 100 metres above sea level. The groimd is rather dry, and
consequently we find here the greatest number of species. Carices
and Scirpus are dominant in physiognomy. Analysis 7 is from
Skagaströnd on low ridges with low, flat mounds, interspersed
with a C. nigra — C. rariflora sociation Tab. IX. 9). Although the
area was dry when the analysis was made it is probably rather
moist during normal weather conditions. E. angustifolium was
quite prostrate and there was in fact no species prominent in
physiognomy, except S. cæspitosus. C. capillaris grew there to
such an unusual extent as to second the character species. Analysis
8 is from Orrastaðir. It was made in a practically flat area which
was rather damp where Scirpus was noticeable on the mounds.
C. panicea was rather conspicuous. Analyses XIVv. 1—2 are both
from Bolungavík, taken in sloping mires. The surface is flat and
the ground fairly dry. Scirpus is completely dominant in physiog-
nomy and covering. The frequent occurrence of C. rariflora is
notable in such dry surroundings. Equisetum palustre is high in
frequency, but insignificant in abundance. The sociation is fairly
widely distributed and sometimes phases into Nardetum.
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