192 1 No. 7. STUDIES ON THE LICHEN FLORA C^F XÔRWAV. 29 



Hord. Moster (H. I, Stord: Leirvik I H.I, Tysnessaata (H.l, Store Kalso 

 (B. L.I, Fusa: Strandvik ILillef.), Saeim (B. L.I, Granvin: Skarpeflaat (H.), 

 and Krossdalen (H.l, \'oss: Lonehorgje IB. L.), Hardangervidda: Haarteig- 

 nuten, summit, 1700 m. s. m. (H.l. Sogn. Myrdal (B.L.I. 



Hed. Matrand (B.L.I, jutulhugget (B.L.I, Tron (B.L.I. Opl. Ringebu 

 (SoMRFT.I, Toftemoen (Zett.I, Jerkin f. grandis (Linds. I, Vaage: Graaho 

 (B. L.I, Lom: Reisheim (B. L.I; Lunner: Snellingen (Lid I, Hadeland: \'alby- 

 kampen (B. L.I, and \>lmunden (B. L.I. 



Sorti: Trondhjem (Kindt), Dovre: \'aarstien (B. L.I, and Snehætta (Linds. I. 



Nordl. Saltdalen (Somrft.I, Hadseloen (Norm. I. Troms. Lavangen: 

 Lidtjell (Norm.), Gibostad (B.L.I, Maalselven: Maalsnes (B.L.I, Bjornstad 

 (B.L.); Bardo: Innset (B. L.), and Altevand (B.L.), Tromsdalen (B.L.), Mikkelvik 

 (B. L.). Fhun. Alten: Okstjord (Norm. I, Lille LærrisQord (B. L.), Store Rai- 

 pas (B. L.), Gargia (B.L.I, and Rautasvarre (B.L.I; Kautokeino: Mortas 

 (Norm. I; Nordkap (Norm.), Porsanger: Skoganvarre (Norm.); Laksefjorden: 

 Nordkvn (Dahl), Skjotningberg (B. L.l, and Sjaaholmen IB. L.l; Karasjok: 

 Sjusjavre (Norm.); Tana: Mehavn (H.), Ristjorden (B. L.), Berlevaag (B. L.l, 

 Birkestrand (B. L.), Langnes (B. L.), \'esterbugt (B. L.), and Polmak: Læva- 

 jok (B. L.); Varanger: S3'ltefjord (Norm.), and Jakobselven (Norm.). 



Though variable enough this species is more monot3-pous than the 

 other Cladinac. The colour is greyish, greyish-white or darker, ver}- dark 

 at sunburnt stations, but not yellowish or greenish as in CI. silvatica. The 

 size varies according to the conditions of life, at moist places — Sphag- 

 num moors and the like — it is very robust and coarse. 



Well distinguished from CI. silvatica (sensu lat.) by the colour, the 

 apical fasciculate branches which are coarser and more spreading in CI. 

 ra)igifcri)ia\ the chemical reaction is also different \rangif. K + , silv. K-j-). 



Cladonia rangifcrina is one of those lichens that are so frequent that 

 their accurate distribution' is litde known. Collectors have been more inte- 

 rested in 'rare' plants, frequent plants have to a large extent passed un- 

 noticed. 



This species requires much light. It is very plentiful in lowland Pinus 

 forests and at sunny places where the soil is so poor that it cannot bear 

 a more exacting vegetation, along the coast as well as in inland provinces. 

 — Li Northern Norway it is less sensitive to the influence of the sea than 

 CI. alpestris, it is not missing at the coast of the Arctic Ocean in Fin- 

 marken, but it is not common there. 



Its vertical distribution is less known, it is not lacking on the moun- 

 tains, but our alpine Cladina is the silvatica (sensu lat. I; the latter is also 

 by far the most widely distributed Cladina in our country. CI. alpestris 

 has its enormous continuous distribution in our continental provinces, CI. 

 rangifcrina is more widely distributed than CI. alpestris, but as to the 

 number of individuals it is the less common of our Cladinac. 



