554 



A. HESSELBO 



zontal, boggy surface, below the slope of the mountain (Fig. 20), 

 The vegetation was almost identical in all of them : In the middle, 

 Mniobryum albicans var. glacialis was found intermixed with Montia 

 rivalaris, then came a belt of Philonotis fontana, often greatly inter- 

 mixed with Marchantia polymorpha and with scattered plants of 

 Saxifraga stellaris, Eqiiisetnm palustre and Epilobium spp. In some 

 moss bogs a pure Hypnetum composed of H. exannulatum var. 

 purpurascens or H. Kneiffii had been developed. 



Fig. 20. Moss bog near Seyclisfjordur. The light-coloured patch in the middle is 

 Mniobryum dlbicans var. glacialis. In the foreground and on the sides Philonotis f\mtana. 



2. Husavik, moss bog on slightly inclined ground: In the 

 middle Mniobnjiim albicans var. (jlacialis and Marchantia polymorpha 

 were found, and around this a belt of Bryiim uentricosum f. major, 

 Mnium affine var. elatum and Philonotis fontana, and outside it all 

 an almost pure belt of Philonotis. 



3. Breidabolstadr, slightly inclined grassland with scattered 

 moss bogs : In the middle Mniobryum albicans var. glacialis grew inter- 

 mixed with Brynm uentricosum f. major; around this was a belt of 

 Philonotis fontana, and outside it all Mnium affine var. elatum and 

 Acrocladium cuspidatum. Some smaller moss bogs below the slope 



