314 SPORT IN NORWAY. 



limit. Bears fruit the summer through, and found with ripe 

 fruit from autumn to spring. 



P. PHEGOPTERIS, L. ; Fl. D. tab. 1,241. In woods. Common 

 up to Alien and Hammerfest ; probably also in East Finmark. 

 Grows on the mountains up to and above the birch-limit, 

 and is found even at higher altitudes than the last. Bears 

 fruit all the summer. Occasional in Drivdal and Vaarstien. A 

 variety, P. major, has been found on Bogstadaas, near Chris- 

 tiania. 



P. DRTOPTERIS, L. ; Fl. D. tab. 1,943. Common in shady 

 places in forests up to East Finmark ; on the mountains up to, 

 and sometimes above, the birch-limit. Bears fruit from the be- 

 ginning of the summer to August and September, according to 

 the altitude. Grows in Drivdal up to and above the fir-limit. A 

 variety, P. tenerrimum, of much more delicate growth, has been 

 found on Grefsenaas, near Christiania. 



P. RHCETICUM, L. ; Fl. D. tab. 2,607. Common on the 

 mountains from the southernmost part of Christiansand Stift 

 (e. g., on Hekfjeld) to East Finmark, where it descends to the 

 sea-sbore. In the south it is only found in the higher regions, 

 scarcely under the limit of fir, and grows at altitudes of 4,000 

 feet above the sea. The nature of the subsoil does not seem to 

 affect it. 



P. EOBEBTIAMTM, Hoff. ; Snppl. FL D. tab. 41. Has a great 

 resemblance to the last. Occasional in shady places from 

 Porsgrund and Christiania to Snaasen in Throndhjems Stift. 

 Professor Blytt remarks that he has never found it on the 

 mountains, and scarcely at higher altitudes than 1,000 feet. Bears 

 fruit from June to August and September. Grows always on 

 chalky soil. 



WOODSIA ILVENSIS, K. Br. ; FL D. tab. 391 and 2,186. 

 Common in fissures in the rock from the southern parts of Chris- 

 tiansand Stift to East Finmark ; on the mountains in osier copses 

 up to and above the birch-limit. Grows in the lower part of 

 Drivdal in the region of fir. Bears fruit at different times, ac- 

 cording to altitude. 



W. HYPERBOREA, Pi. Br. , FL D. tab. 2,185. Bears a great re- 

 semblance to the last. Habitat same as the last. Occasional in 

 Drivdal, and more frequent than the last. It seems to thrive 

 best on substrata of lime and slate. 



