570 



A. HESSELBO 



/u/n, Calypogeia Trichomanis and Scapania irrigua. Aulacomnmm 

 palastre was occasionally met with on wetter ground, and Archi- 

 dium phascoides, Ditrichum homomallum and, on a single spot, 

 Campylopus frayilis on rather dry, clayey soil. Under the Hyp- 



Fig. 22. Laugarashverir. The springs are situated at the foot of a 

 hill : along the outlet-channel and next to the water there is a narrow, 

 dark belt of Hepaticd- and Archidiuin, then conies a broad belt of 

 Sphagnum-cushions, and outside that (the dark patch in the fore- 

 ground) are ffypnum-carpets. 



n urn-mats there was an almost constant temperature of 32, and 

 under Archidium as much as 46. On the slope above one of the 

 largest springs Riccia sorocarpa grew in abundance, and where 

 steep banks were formed along the outlets grew Hypmim, Thui- 

 diam and Catharinea iindnlata f. thermophila ; as was the case near 

 Thorlakshver. 



