400 A. HESSELBO 



On July lOth I relurned to Reykjavik by the steamer "Botnia", 

 and rode thence through Esja and around Hvalfjordur to Reykholt- 

 dahir. where I stayed some days and investigated the hot springs, 

 and made an excursion to tbe farm Giisbakki. On my way back 

 I passed through Reyklioltdalur and Lundurreykjadahir to Thing- 

 vellir, and thence to Reykjavik, 



On my last journey in 1914 I slayed on the island of Vest- 

 mannaey, which I had previously had opportunity to visit only for 

 a few hours, on my \vay to Rejkjavik, from the 4th to 9th July. 

 I went to Reykjavik on the lOlh, and rode on the same day to 

 Kolvidarhol, and thence further across Reykir and Thjorsartun to 

 Fijotshlid near the Markarfljot, where I stayed some days at the 

 farms Breidabolstadr and Barkarsladr. On the ITth I rode across 

 the great river Markarfljot to the vicarage of Holt, south of Eyja- 

 fjallajokull, and stayed partly there and partly at the farms Drångs- 

 hlid and Seljaland unlil July 24th, when I recrossed the Markar- 

 fljot on horseback, and rode past the farms Thjorsartun and Skal- 

 holt to Geysir, and thence across Thingvellir to Reykjavik, where 

 my journey ended abruptly on August Ist on account of the out- 

 break of war. 



As may be seen from the above survey, Iceland is as yet verj^ 

 incompletely investigated as regards bryology. All previous collec- 

 tors, with the exception of Gronlund, had no, or almost no, know- 

 ledge of the Bryophyta, and have, therefore, only been able lo 

 take chance specimens, which must, therefore, often give a mis- 

 leading idea of the composition of the vegetation. The great 

 distances, together with a slow and toilsome journey on horse- 

 back, render investigation difficult, and rain and fog often greatly 

 delay the work, and make it almost im[)ossible to travel in the 

 mountains. 



The most thoroughly investigated regions are South-west Iceland 

 from Eyjafjallajokull to Borgarljordur, East Iceland from Horna- 

 fjordur to Seydisfjordur, the districts around Eyjafjordur in the 

 north and around Isafjardardjup in the north-west. Throughout 

 large parts of the country mosses have, praclicallj% never been 

 collected; thus, in the north-east from Seydisfjordur to Axarfjordur, 

 in South Iceland from Vik to Hornafjordur, in the greater part of 

 North Iceland and in almost the whole of the large interior plateau. 

 Therefore this list of the Bryophyta found in Iceland can by no 



