36 H. MØLHOLM HANSEN 
TABLE 8. 
Species Group Spectra and Biological Spectra of the Altitudinal 
Zones and Types of Vegetation in Vestfirdir 
(based on Ingimar Oskarsson’s lists of species (1927). 
n |A| E|A3/A2 Al|E4 E3 E2 E1lPh Ch H | G|HH/Th 
| = I Mi} ae | | Sale | | 
N) re 14\93| 7\50|43| »| 7 > | » | 43) 50 
| 7 > » 
Se eee 3589| 11] 52| 34| 3] 9| 3) > |» | >|43/46| 9| 3] > 
DE LT ARTEN 741 68| 32| 27| 27| 14| 16| 14) 3 | > | >|31151114| 4] » 
BEDUOREN AL. 112151 | 49| 21| 19| 12] 22| 17 | 8 | 2| 1124 46158 5 
VETO rn | 191 41 59|| 15| 14| 12| 21) 19/14 | 5 | 1117152115} 6) 9 
ERA Ber Be een) bei Bei Ue Ves Bee | _ 
The entire area.. 212/44) 56) 16| 16| 11) 19) 18,13 5 | 1) 18/52/14) 7 | 8 
Highland melar.. | 45 182 | 18] 42| 31| 9| 13| 4) > »/40 49 |11|.» | > 
Dwarf willow veg. | 27 70 30| 22| 41) 7] 19| 4) 7 |» || >|30/52|19| » | » 
Lowland melar.. | 82160 40| 22 23| 15) 17| 12) 5 | 6) 134/54, 9) > | 2 
Heath vegetation. | 80/49| 51 | 11| 23 15) 20| 18) 11 | 313125 5418| >| 1 
Mo vegetation ... | 73151 49| 15| 25 11) 18| 19 8 |4||»|22|56|14| » | 8 
Myri vegetation.. | 6949| 51|| 19 | 19| 12| 25| 15 | 10 | 2 | >| 10|52)25| 9 | 4 
Littoral meadow. | 20/50 | 50| 35| 5 10) 25) 25, > |» | »|10/60)15| > | 15 
Grass-field veg... | 57/30/70) 7| 11| 12] 18| 25/19 | 9 | »| 12/60/12] » |16 
Herb-field....... | 3132| 68) 10| 23| »| 23| 26/16 |3 | >119|61|16| » | 3 
Bireli copse’. .....: 47\23| 77| A| 11| 9126| 28/21 2 |4/21/40/|30| > | 4 
Freshwater veg... | 13| 8| 92| »| 8 »| 64/ 31| 8 | » | >| »115115]70 | » 
Hot springs ..... | 12] > 1100|) » | >| »,25|42| 8 125 | »| »167| 8| » |25 
highest Ch percentage, the mo the highest H percentage, the myri 
the highest G percentage, and the freshwater vegetation the highest 
HH percentage. 
A third group is formed by the littoral vegetation, the grassfield 
vegetation, and the vegetation of the hot springs. These three types 
of vegetation are all characterised by a high H percentage and, in 
proportion to the other types of vegetation and to the area as a 
whole, an unusually high Th percentage. In the species group 
spectra, however, they differ essentially. 
Between the freshwater vegetation and the vegetation of the hot 
springs which both show an unusually high E percentage, there is 
a striking difference in the spectra of the E subgroups, the fresh- 
water vegetation having its maximum in E4 and the vegetation of 
the hot springs in E3. The deviation is, however, greatest in El 
