The Botany of Iceland - 01.12.1930, Síða 67
STUDIES ON THE VEGETATION OF ICELAND
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Table 13 a continued.
1 2 3 4 5 (> 7 8 1 9 10
Euphrasia latifolia j A 2 Tli > > » j » » » » * » 4
Fcstuca ovina 1 E 4 H » 4 » » » » 20 » » 4
Gnaphalium norvegicum . A 1 H > » > » > » » » I » 4
Hieracium silvaticum E 2 H > > » > 10 » » » »
Juncus trifidus A 2 H 8 » » » 40 > 20 » ! » ».
Lcontodon autumnale ... E 3 H » » » 24 » » » » 4 4
Luzula spicata A2 H 8 > » » » » 10 > » »
I.ycopodium alpinum.... A 2 H » » » > » » > > 8 »
Nardus stricta E 3 H » > 8 » » » » »
Orchis maculata E 2 G » » » 8 40 10 » » »
I'irola minor E 4 H > > » 4 » » > »
Ranunculus acer E 4 H > > » > > » > » 4
Salix glauca A 3 Ch > > » > 10 > » » » 4
lanata A 1 Ch 4 > 8 » > > > >
— phylicifolia A 1 Ch 1 » 4 4 4 > > » > > 4
Thalictrum alpinum A 2 H 12 8 > 12 > > » » 1 12 12
Thymus serpyllum E 4 Ch 4 8 » » 80 > » » »
Tofieldia palustris A 2 H > > » > > » 10 1 » > ! »
Trisetum spicatum A 3 H » » » » 10 » » » >
Viola canina ! E 3 H * » » » 40 * » » »
sunny northern margin, No. 7, tlie typical geiri vegetation chiefly
occurring along tlie sides of the snow patch, No. tí, and the vegetation
at the bottom of the snow patch, No. 8. The northern margin is
more arctic in character than the typical vegetation. The A per-
centage is 39.6, while it is only 5.8 for the typical vegetation. The
bottom vegetation is almost identical witli the previously described
Ðeschampsia cœspitosa valllendi both hiologically and floristically.
The vegetation of the snow patches at higher levels of Lýngdals-
heiði, thus at a height of c. 300—400 m, is shown in table 13 A,
0—10. In ils broad features it corresponds to the geiri vegetation
al lower levels, though a number of species of common occurrence
in the snow patches of Lyngdalur liave disappeared, thus (.alltina
vulgaris, Luziila multiflora, and several Galium species. Others again
have become less conspicuous, but on the other hand some new spe-
cies have becn added such as Gnaphalium supinum, G. norvegicum,
Sibbaldia procumbens, Alchemilla alpina, A. minor, Hierochloé odorata,
and Veronica alpina. Tliese species seem to be charaeteristic of the
snow patches in the upper parts ol' Lýngdalsheiði.