STUDIES ON THE VEGETATION OF ICELAND >» / 
TABLE 13A CONTINUED. 
Euphrasia latifolia ...... | A2 Th 4 
Bestuca OvINA.......:.. E4 H 4 » 20 ) > 4 
Gnaphalium norvegicum . Al H > > » 
Hieracium silvaticum.... i 2 H > » | 10 | > 
Banens trifidüus.-.......- | A°2 H 8 » 40 | » 120 ) ) 
Leontodon autumnale ... | E3 H > » » | 24) » » » | 4 | 4 
Bazala spicata...: »..... | A2 H 8 2 ) » 10 > 
Lycopodium alpinum.... | A2 H » > > > » | 8 
Mardus strieta.......... | E3 H » > > 8 > 
Grecs maculata:........ | E2 G » | 8 | 40 » |10 | » 
IA MIDOr, se E 4 H > > » 4 > » > » 
Ranunculus acer ........ E4 H 3.10 > »| >» > 4 
AE EV ee une ee A3 Ch > > » 10 » | » 4 
== TEE RA ee eo Al Ch ER En LSE AP SEE | >| » 
— phylicifolia........ AT eG Wo eel Beas 5 » | » | 4 
Thalictrum alpinum..... AH 112.181.» 18) este | 1870 
Thymus serpyllum ...... E4 Ch A NAS EE «3 [80 | » 120 | » | » 
Tofieldia palustris....... | A2 H ee 10 | » | ss 
Trisetum spicatum ...... 187453 H N ED en ee er lee » | » 
RIGE CATIINIA "5 3,6... | E3 H | » | » » | » | 40 | ala LME OI 
sunny northern margin, No.7, the typical geiri vegetation chiefly 
occurring along the sides of the snow patch, No.6, 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 with the previously described 
Deschampsia cespitosa valllendi both biologically and floristically. 
The vegetation of the snow patches at higher levels of Lyngdals- 
heidi, thus at a height of c. 300—400 m, is shown in table 13 A, 
9—10. In its broad features it corresponds to the geiri vegetation 
at lower levels, though a number of species of common occurrence 
in the snow patches of Lyngdalur have disappeared, thus Calluna 
vulgaris, Luzula multiflora, and several Galium species. Others again 
have become less conspicuous, but on the other hand some new spe- 
cies have been added such as Gnaphalium supinum, G. norvegicum, 
Sibbaldia procumbens, Alchemilla alpina, A. minor, Hierochloé odorata, 
and Veronica alpina. These species seem to be characteristic of the 
snow patches in the upper parts of Lyngdalsheidi. 
