24 nrRNT I.YNGE. M.-X. Kl. 



special Arotic coast lichens are a number of crustaceous lichens, such as 

 Lrcaiiora straminca and Riiiodina Ixilmihm, nncl rithers, many of them 

 first described by Waiilenbkrc. 



But at certain places the conditions of life for lichens is anythinj^ but 

 poor, and that is at the great fishing ports in Finmark. Nowhere in this 

 country is the offal of fish in such abundance, and nowhere so many 

 birds. And nitrophilous and ornithocoprophilous lichens (Sernander) 

 develop luxuiMant associations, upheard of in other parts of Norway. On 

 the mountains in Southern Norway nitrophilous lichens accumulate on pro- 

 minent rocks and large isolated stones, but in Finmark they cover large 

 areas: The hsh-flakes are yellow from Xauilmria /yclnira, and on the shore 

 this lichen, Gyrophora arctica (large specimens), Lecanora stranunea, Physcia 

 trihacia, Parnielia sulcata, Xanthoria parietina, Caloplaca and Rinodina sp. 

 and other nitrophilous lichens form conspicuous and extensive associations. 



This sketch is based on the knowledge we have of the geographical 

 distribution of certain genera of lichens in our country. After more than 

 150 years of work, important parts of our native country are still un- 

 explored, other districts have not been investigated for generations, so that 

 there is an immense field of work before us. 



