58 H. MØLHOLM HANSEN 
TABLE 138. Biological Spectra of the Geiri-Vegetation. 
1 2 3 4 5 6 7 8 9 10 
Points sum....... 892 | 928 868 1360 |1550 860 | 960 | 670 | 960 | 1104 
Number of species 24 27 22 35 27 17 23 9 28 33 
Density of species. 8.9 9.3 SI UGH |) ISSN] GEO TE 6.7 9.6 | 11.0 
(Aa NE ete Meds; nis à 26.9 | 16:8 1,1247 197 | 20:0 5.8 | 39.6 | 10.4 | 30:0 | 40:9 
PACE OR Na TL 73.1 83.2 | 87.6 80.3 80.0 | 94.2 | 60.4 89.6 | 70.0 | 59.1 
EC ete ena is | 99.109 ur | 116.) 58 | 177 | 1021] 999 | 21.0 
Ae) eae ee ee AV] 34.1 41.3 >| 09| 26 > | 14.6 >| 58 | 152 
Al SER and ee Siete 63 5.6 3.2 4.7 5.8 7.3 1.3 | 
COO RP err 33.2 | 29.7 | 32.7 | 23.8 | 26.5 | 31.4 | 20.8 | 10.4 | 25.0 | 178 
E3............... 20.6 | 30.2 | 27.6 | 28.5 | 265 | 29.1 | 19.8 | 40.3 | 30.0 | 236 
PET PEACE 18:8 | 21:6 1 27.212741 | 23.9) | 326.) 17.7 | 38:8 | 15.072074 
El............... 04 | 17 le > 04 
S| el ony ea 36.8 | 31.5 | 34.6 | 29.4 | 323 | 372 | 42.7 > | 33.8 | 34.8 
| eg Mie ER Re 50.7 56.9 57.6 60.3 548 58.1 45.8 88.1 49.2 | 48.2 
(Se easy en BE 12:6 | 11.6 | 7.8 | 10.3 | 12.9 | 4.7°| 11:5-| 119 | 174 1362 
HH so a es Dans pee > > > » » 
Th PraKe ie.» le len rate ep ae » 2 > 2 > 7 0.4 
In arctic, Scandinavian, Scottish, and alpine regions these plants 
are likewise, according to the records, peculiar to places with a deep 
and persistent snow-covering. The two Alchemilla spp. seem to prefer 
the upper parts of the snow patch, whereas they are absent from 
the lower parts. — The two snow patch localities correspond to two 
mo localities, viz. 8—9 in table 11. 
Biologically the geiri vegetation is characterised by 
its low A percentage and high E percentage. The increase 
in the E percentage is especially due to E 3 and E 2. 
B. THE VEGETATION AT BJORK. 
Above we have described the vegetation in the middle and upper 
tracts of Lyngdalsheidi, in the following we will subject the vegetation 
at its foot to further discussion. All investigations of the vegetation 
were carried out in the vicinity of the Bjérk farm and with this 
as their base. It is situated at the foot of Lyngdalsheidi’s eastern 
side at an altitude of c. 100 m. 
