I92I. No. 7. STUDIES OX THE LICHEN FLORA OF NORWAY. 1 63 



melia p. 120 1 it endures shadow better than the other plants of this tribus, 

 it can grow on the stem of Fagiis. It is sometimes found on wood-fences. 

 I have seen saxicolous specimens from Sweden (Bohuslän, Magnusson), but 

 not from Norway. Wainio has found it saxicolous in Finland (Adjum. 1, 

 p. 124). 



var. lactcvirciis has much the same distribution as P. /ii/igiiiosa, type, 

 but it has been recorded a little farther north and it is evidentlv not so 

 rare in our inland pro\-inces as the type. \-ar. loctevireiis belongs to the 

 zone of the deciduous trees, I have seen no specimens from stations higher 

 than Reime at the Bergen railwav (ca. 500 m.). It is frequent near Kri- 

 stiania (Asker, Bærum), and evidently common in the whole of Southern 

 Norway ; but its distribution as well as its frequency is as yet insufficiently 

 known. 



'27. Parmelia infumata Nyl. 



Troiiis. Skibotndalen (leg. B. L., det. Lang). Fi nm. Sakkobani (B. L.), 

 Skoganvarre (B. L.). 



I have seen no good authentic specimens. M}- plants from Skibotn- 

 dalen were poorh' developed. The colour is pale in some specimens, dar- 

 ker in others. If the isidia are little developed and the thallus very inlu- 

 mate, it may resemble 'caesiopruinose' forms of Parmelia olivacca, perhaps 

 some of the plants referred here to the latter species, reall}' belong to 

 Parmelia infumata. 



According to Lang (hb. note) Pannclia i>ifiimata is 'allmän i Lap- 

 marken' (common in Lapland). . 



28. Parmelia exasperatula Nyl. 



0sf/. Raade: Ovenoen (B. L.). Akersli. Nordby (,B. L.); Kristiania, 

 Bærum, Asker, Hakedalen, and Grorud very frequent (B. L.), Østensjø 

 (Høeg), Minne (B. L.l. r^s//". Nettere (B. L.), Larvik : Tanum (Norm.). Busk. 

 Norderhov (Norm.), Hol: Neraal (B. L.). 



Telem. Vestfjorddalen : Rjukan (B. L.). F-^s/a^r/. Kristianssand: Ravne- 

 dalen (B. L.), Mandai: Skjernoen (B. L.). 



Hord. Moster (H.), Strandebarm: Skogesal (Lillef.), Bergen (H. I, Gran- 

 vin: Sellandstel (H.), Voss: Vangen (H. I, and Bjergum (B. L.l. Sogn.YWc- 

 fjell (M. N. Bl.). More. Molde (H.). 



Hed. Elverum (B. L.), Helgeen (B. L.), Hesbjor ( Jebe), Veldre (Nordh.). 

 Opl. Otta (H.), Vaage: Graahe (B. L.l, Vistad (Jebe); Gran (Jebe), Fluberg 

 Lia (B. L.), N. Land: Enger (B. L.), Torpen: Reste (B. L.). 



Sortr. Trondhjem : Sorgenfri (B. L.), Vaarstien (B. L.), KongsvoU (Zeit.). 

 Knutshø (B. L.). Nordtr. Prosta (Jørst.). 



