The Botany of Iceland - 01.12.1945, Side 182

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STEINDÓR STEINDÓRSSON
TABLE XV. B.
Biological spectra of the Chamaephyte-heath vegetation on Snæfellsörœfi.
Total of points Number of species Density of species I IOOO 18 10.0 2 3 980 1000 21 22 9.8 10.0 4 79° 14 7-9 5 560 13 5-6 6 880 18 8.8 •'J 4^(0 0 ^ '•J 8 720 19 7.2 9 780 15 7.8 10 860 19 8.6
A 68.0 75-5 70.0 58.2 62.5 70.5 61.6 73-6 71.8 53-4
E 32.0 24-5 30.0 41.8 37-5 29-5 38.4 26.4 28.2 46.6
A 3 44.0 43-9 47.0 43-0 48.2 46.6 59-5 44.4 61.5 32.6
A 2 17.0 29.6 23.0 * 5-2 14-3 23-9 2.1 23.6 9-o 11.6
A 1 7.0 2.0 — — — — — 5-6 i-3 9-3
E 4 29.0 23-5 30.0 38.0 37-5 29-5 27-7 19-4 28.2 22.1
E 3 — 1.0 — — — — — 2.8 — 14.O
E 2 30 — — 3-8 — — 10.7 4.2 — 10.5
E 1
Ch 44.0 53-i 39-o 4i-7 23.2 55-7 36.2 16.7 30.8 24.4
H 26.0 27-5 31.0 38.0 33-9 20.4 4-3 47.2 35-9 43-o
G 26.0 19-4 2 1.0 20.3 39-3 22.7 59-5 36.1 29-4 32.6
HFI
Th 4.0 — 90 — 3-6 1.2 — — 3-9 —
TABLE XVI. A.
THE DWARF-SHRUB-HEATH VEGETATION
Localities: 1-2, 5 Kýlingar, Lafr. 8. VIII. 31 ; 3-4 Blágil, Síð. 11. VIII. 37; 6 Jökul-
dalir, Lafr. 11. VIII. 31; 7-8 at Geldingsá 23. VII. 37.—Loc. 1-4: Salix glauca-
Carex rigida-Ass., 5: Salix glauca—S. lanata-Equisetum pratense-Ass., 6: Salix
herbacea-Carex rigida-Ass., 7: S. glauca-Empetrum-Ass., 8: Empetrum nigrum-
Elyna Bellardi-Dryas 0 ctopetala-Ass. 1 2 (10 3 X 0.1 4 m2). 5 6 7 8
Salix glauca Ch a3 100 70 100 50 70 50 90 20
— lanata Ch Ai 60 80 — 60 90 — • — —
— herbacea Ch a3 — 20 90 3° — 100 20 —
Carex rigida ga3 40 90 100 90 60 30 100 —
Equisetum variegatum ha3 80 60 70 100 40 40 40 100
— arvense GE4 10 10 40 80 40 — 100 —
—- pratense GE2 — — — — 80 — — —
Empetrum nigrum Ch E4 — — — — — — 100 100
Festuca rubra he4 80 — 100 100 70 30 80 50
Polygonum viviparum ga3 — 20 80 10 — 3° 100 100
Tofieldia palustris H A2 — — — — — — 70 10
Thaiictrum alpinum H A2 — — 90 30 — — — 30
Dryas octopetala Ch A3 — — — — — — — 100
Elyna Bellardi ha3 — — 20 — — — — 100
Vaccinium uliginosum Ch E4 — — 70 — — — 70 50