I92I. No. 7. STUDIES ON THE LICHEN FLORA OF NORWAY. 99 



Gyrophora dciista is distributed throughout our whole country, rather 

 scattered in Northern Norway, otherwise a frequent species everywhere, 

 and more common than G. polyphylla. In Western Norway it usually ascends 

 to ca. 700 m. and occasionalh- to very considerable heights, this is also 

 the case in Central and Eastern Norway, e. g. the summits of Knutshø 

 (1688 m.), and Haarteignuten (1690 m.). 



Most luxuriant on moist rocks, but also quite common on dr}- stones. 



12. Gyrophora polyrrhiza (L.) Kbr. 

 Map \ , 2. 



Øst/. Hvaler: Storsanden (B. L.). Akersli. Holand (M. N. Bl. or Somrft.): 

 Skullerud (B. L.), Tofte (B. L.), Nesodtangen (M. N. Bl.), Ekeberg (Somrft.), 

 Grefsenaasen (Moe), Vættakollen (Moe), Kolsaas (Kiær). Vcstf. Vikstjorden 

 (B. L.). Busk. Drammen: Brageraasen (Somrft.), Gyrihaugen (B. L.), Modum: 

 Hovlandsljell (Moe), Jonsknuten (Kiær). 



Austagd. L3mgør (B. L.). Vestagd. Mandal: pr. Skjernoen (B. L.). 

 Rog. Rennes© (M. N. Bl.), Heresund (Jebe). 



Hord. Moster (H.), Megster (B. L.), Ytre Aakero (B. L.), Store Kalso 

 (B. L.), Thurø (B. L.), Osteroen (Somrft.), Granvin: Nesheimshorgen (H.), 

 Hardangervidda: Graoberg (H.l. 



Hcd. Tron (B. L.). Opl. \aage: Graaho (B. L.). 



Sortr. Froan: Risø (Nordh.), 'Dovre' (Moe). 



Gyrophora polyrrhiza is rather common along our whole South and 

 West coast as far north as Trondhjem. In inland districts there are only 

 some alpine and subalpine stations, it has never been recorded from the 

 valleys. On the mountains it ascends to 950 — iioo m. as a common plant 

 (Hardangerv'idda), but not to the highest summits. 



f. hixurians Ach. with the type, not rare. 



Vi. Gyrophora cylindrica (L.) Ach. 



Akcrsh. Kristiania: Ekeberg (Moe), Minne (B. L.). Vcstf. Larvik (Norm.). 

 Bitsk. Klevstuen (H.), Modum: Lamanskleiv (Moe), Hoi: Odnak (B. L.), Gjeilo: 

 Budalen (B. L.), Prestholskaret (Lerche), Haugastøl: Follaskaret (B. L.), Kongs- 

 berg (PouLSS.), Jonsknuten (Kler), Jondalen (Somrft.), Nore: Hallands^ell 

 (Kiær). 



Tekut. Litjell (Hoch), Vestljorddalen (Kiær), Gausta (Th. Fr.). Austagd. 

 Evje (Sør.), Bygland: Bjorgum (SøR.), and Aardalsnuten (Sør.). Rog. Dalene: 

 Moi (Jebe). 



Hord. Moster (H.), Strandebarm: Vesold (Lillef.), Bergen (Friele), 

 Hamre: Sjursæterfjell (Lid), Lygreljorden (B. L.), Sæim (B. L.), Granvin: 



