THE FERNS OF NORWAY. 261 



Sweden and Norway as a decoction wherewith to get 

 rid of vermin in cattle. 



L. inundatum. Grows on the banks of lakes in the 

 south of Norway. 



Opliioglossum vulgatmn. This small fern is found in 

 moist places on the shores of some of the Norwegian 

 fjords. 



Botrychium Lunaria. Is pretty common all over the 

 country, even in the north. In the Dovre-fjeld it is 

 found by Kongsvold, and in Drivdalen. 



B. rutaceum. Less common than the preceding. 

 Grows near Christiania and in Gudbrandsdalen. 



Blechnum Spicant. Common in some parts of the 

 west of Norway, and in Finmark. Found in the Dovre- 

 fjeld as high as the fir grows. 



Cystopteris fragilis. The brittle bladder-fern is 

 pretty common in all damp places in the Norwegian 

 fjelds. 



G. montana. Common in moist places in the Dovre- 

 fjeld ; near Kongsvold and in Drivdalen. 



C. crenata. This rare fern is said to be found in 

 only one or two places in Gudbrandsdalen, viz. near 

 Kringelen and Yig. 



0. regia. Found in alpine regions in the south of 

 Norway. I have seen it at Bserum, seven English 

 miles from Christiania. 



Iiastrea Thelypteris. Found in marshy places. I 

 have seen it near Christiania. 



PolystichumFilix-mas. Common all over the country 

 up to Bast Fmmark. Is found in Drivdalen above the 

 fir-limit. 



P. cristatum. Is common in the vicinity of Christi- 

 ania. 



