H. N. DIXON AND W. E. NICHOLSON. 



coast in western Norway the climate and especially the rain- 

 fall becomes modified very rapidly; thus at the mouth of the 

 Sognefjord there is an annual rainfall of about 80 inches, while 

 on the Nærøfjord, 60 miles from the mouth, it is 31 inches, and 

 at Lærdalsøren, 87 miles from the mouth, 16 inches only. We 

 had hoped that Maristuen, which is only about 32 miles inland 

 from Lærdalsøren, to some extent shared its climate, but since 

 it rained more or less every day of our visit, we could not but 

 think that we had met with an undue proportion of the rain- 

 fall. To the small annual rainfall, however, was probably due 

 the fact that we noticed so few mosses growing upon the tree 

 ■trunks at Maristuen: practically none of the common species of 

 Ulota or Orthotrichum were observed, while nearer the coast 

 the trunks are often thickly clothed with these mosses. 



Although the genus Grimmia is generally more partial to 

 siliceous rocks, we were very much struck by their extraordinary 

 development on the dry limestone rocks near Lærdalsøren, where 

 if we include Goscinodon, ten species were observed after a very 

 cursory examination. On the moister parts of the same rocks 

 Barbula icmadopMla, Schp. was very abundant and was frui- 

 ting, though poorly, in places. 



It should be added that the Sphagna of the district were 

 not at all exhaustively studied. 



We are much indebted to Dr. Hagen, Herr Kaalaas, Mm, 

 Renauld and Cardot and Dr. Best for assistance in the identi- 

 fication of some of our specimens. 



Sphagnum teres Angst. Lower slopes of Suletind near Mari- 

 stuen — a fuscous form with hardly a trace of green. 



S. acutifolium Ehrh. var. fuscwm Schp. Common about 

 Maristuen, often growingwith Buhus chamœmorus. S. Lindbergii 

 Schp. Common in very wet ground near Maristuen. 



Andreœa Rothii, W. & M. Var, grimsulana B. & S. Wet 

 rocks on the Horre pass c. fr. Robust but scarcely so reddish 



