igZI. No. 7. STUDIES ox THE LICHEN" FLORA OF NORWAY. 7 I 



Asker: Tanum (H.), Grorud (B. L.), Nordmarken: Hakedalen (B. L.), and 

 Kikut (B. L.), Eidsvoll: Villberghaga (Sør.). Vest/. Tensberg: Foyenland 

 (B. L.l. 



Anstagd. Lyngor (B. L.), Askeroen (B. L.); Nergaren (B. L.). J'rsfagd. 

 Kristianssand : Vaagsbygden (B. L.l. 



Hon/. Granvin: Seljevae (H.l, Voss: Lonehorgje (B. L.), MjelQell (B. L.). 



Hcd. N. Østerdalen: Brydalen (B. L.l. Op/. Ringebu (Somrft.I; Brand- 

 bu (B. L.l. 



Sorfr. Fæmunden: Sorvika (B. L.l. 



f. pliy//op/iora is a common forest plant in Southern Norway, not recorded 

 north of Dovre. 



Cladonia (/cgencraiis is a frequent, though not an ubiquitous species 

 in Norway, distributed in many formae throughout our whole country 

 (though less common in Eastern Finmarken), ascending from the level of 

 the sea to considerably above the tree line. 



On the ground in the forest, in Ericeta, on mossy rocks, on gravel 

 along roads, and the like. 



It is a ver}- variable species, and many formae have been described 

 and named. Most authors agree that these formae are anything but con- 

 stant. Intermediate stages are common between each of them, and one 

 tuft ma}' represent several different 'formae'. — Like so man}- other 'for- 

 mae' of this genus they are interesting as representing the wide variation 

 of the species. 



There is evidently some difference as to their geographical distribution 

 in Norwa}-. The most conspicuous formae in our country have been 

 mentioned above. 



38. Cladonia gracilescens (Flk.) Wain. 



Alacrs/i. Bærum (Somrft.I. 



Hard. Moster (H.l, Strandebarm: Tangeraas (Lillef.I, Granvin (H.l. 

 Vidda common: Blyberg and Grendalssaeter (H.l. Sogn. Myrdal (B. L.l. 

 Møre. Romsdal: Skiri (H.l, and Alterhea (H.l, Sundalen: GJeitaadalen (H.l. 



Hed. Tron (B. L.l, Hodalen (Resv. H.l. 



Sartr. Dovre: Vaarstien (B. L.l, Kongsvoll (M. N. Bl.I, and Knutshe 

 (B. L.); Fæmunden: Langen (B.L.I. 



Nord/. Saltdalen (Somrft.I. Tro)iis. Maalselven: Maalsnes (B. L.l, and 

 Malangsfossen (B.L.I, Bardo: Innset (B.L.I; Fleifjell (B.L.I. /7/////. Alten : 

 Bosekop (Zett.I, and Store Raipas (B. L.l; Karasjok: Sjoallejavre (Norm.), 

 and Norojokgorcce (Norm. I; Laksefjord: Nordkyn (B. L.l, and Skjotningberg 

 (B. L.), Tana: Birkestrand (B. L.), Langnes (B.L.I, and \'esterbugt (B. L.); 

 Varanger: \'annelv (Norm. I. 



