STUDIES ON THE VEGETATION OF ICELAND 15 
TABLE 2. 
The Biological Spectra of West and East Greenland. 
31.9 53.6) | 101) 43 
W. Grl. 80°—83° N. Lat. VIII 2,9 | 69| > 
769—809 — VII 5.5 | 109 | > | 31.2 | 52.3 | 11.0 | 4.6 | 0.9 
ae = Wr. Ba >30 | 527 | 128 | 40) 13 
69°71" — Va... | 5.1 | 197] >» | 274 | 523 | 118 | 6.1 | 25 
Disko Vb.. 7.5 | 214) » | 25.7 | 53.3 | 12.1 | 6.1 | 2.8 
660—699 — IV 6.0 | 233 > | 25.8 | 51.1 | 9.9 | 9.0 | 4.3 
GEO 66 — if 7.8 | 217 | 0.5 | 24.4 | 548 | 9.7 | 7.4 | 3.2 
6964 —' I 9.3 | 216 | 1.4 | 21.3 | 56.5 88 | 74 46 
S. Grl. 61°—60°—61° I ... | 11.4 | 236 | 1.3 | 18.6 | 542 | 106 | 7.6 | 7.6 
E. Grl. 61°—65° N. Lat. I ... 9.2 || 153 > 1229 | 60.1 | 9.2 | 46 | 3.3 
Angmagsalik IH ...| 90 | 167 | » | 246 | 58.1 | 8.4 | 6.0 | 3.0 
67°—70° N.Lat. IV ... | 7.5 190 |" >| 308 | 542 | 9.2 | 42 | 17 
Scoresby Sound V … | 6.3 | 160 | > | 29.4 | 52.5 | 125 | 3.8 | 19 
720-760 N.Lat. VI ... || 4.8 | 126 | » | 29.4 | 540 | 119 | 2.4 | 24 
760—819 — VI .:.| 5.5 | 91] » | 330 | 49.5 | 143 | 33 | » 
810—830 — VIII ...| 43 | 47] » | 426 | 447 | 106 | 21 | > 
BE Greenland ...:........:-:, | 8.2 | 352 | 0.9 | 21.6 | 54.0 | 10.5 | 7.7 | 54 
East Greenland ................. | 7.1 | 238 | 25.2 | 57.6 | 10.0 | 4.2 | 2.9 
West Greenland................. | 7:3 11640 | 0.4 | 252 | 53.4 | 10.7 | 6.7 | 3.6 
Ben Grcenland..... 1... u 7,1 | 864 | > | 28.6 | 54.6 | 10.6 | 4.1 | 2.1 
of fact, the chamaephyte percentage is considerably lower. According 
to Raunkiær (1908), Tromsø in 69—70° N. has a chamaephyte per- 
centage of 10, and Vardø, in a still more northerly situation but 
protected from the sea, has a chamaephyte percentage of c. 15. 
It is thus beyond doubt that there is a connection 
between the biological spectra and the current conditions 
ofthe surrounding seas. 
For the rest it is probably the temperature conditions which 
have most influence on the composition on the flora, that is to say, 
the annual mean temperature or more probably perhaps the tem- 
perature conditions of the winter. Passing from the lowlands to 
the highland, the annual mean temperature, as shown above, grows 
1) In the tables the abbreviations are as follows: n: number of species, Pt: 
Pteridophytes, Ph: Phanerophytes, Ch: Chamaephytes, H: Hemicryptophytes, G: 
Geophytes, HH: Helo- and Hydrophytes and Th: Therophytes. 
