1 92 1. No. 7. STL'Dlf:s ox THE LICHEN FLORA OF XORWAY. 35 



Hcd. Odalen: Sander (B. L.), Tonset (B.L.I. 



Nordl. Saltdalen (hb. Somrft.). Trains. Sjoveian (B. L.), Längen: 

 Lulle (B. L.). 



C/ado/iia bacillaris is supposed to be a plant of eastern lowland 

 distribution in Norway. Havaas never found it in Western Norway. 

 Not recorded from Finmarken. 



Evidently no common species; by far the greater part of our ;//c?(7/r///'c7 

 — bacillaris material belongs to the former species. On old decaved trunks, 

 also on mossy earth. 



Cladoiiia bacillaris is easily confused with CI. iiiacikiifa, from which 

 species it is separated by the KOH-reaction. — Sommerfelt's 'Ccnoiiivcr 

 polyilactyla f. macilciita" contains CI. Flocrkeana, macileiifa, and bacillaris. 



Our plants generally agree well with Norrl. et Nvl. 443 (according 

 to Wain. Mon. I p. 92. var. clavata (Ach. I W^ain, but greater and coarser 

 plants are also found, agreeing with Sandstede Clad. No. 131. — One 

 specimen from Saltdalen (Somrft.) is slightly scyphose, but it is KOH^. 



10. Cladonia macilenta (Hoffm.) Nvl. 



Akcrsh. Ski (B. L.), Nordmarken ubique (B. L.l, Bærum (Somrft. I, Ho- 

 vik (KlkrI. ^^cstf. Yasser: Sandoen (B. L.l, Larvik (Nor>l). Busk. Krok- 

 kleven (H.I. 



Aiistagd. Nergaren (B. L.l, Evje: Grasdalen (S0R.I. Vcstagd. Kristians- 

 sand: X'aagsbygden (B. L.). Rog. Sogndalsstranden (H.I. 



Hord. Fitjar: Giso (LidI, Granvin very common (H.I: KoUenesaasen 

 (H.l, Voss: Graasiden (B. L.l. Sogn. Statlandet: Ervik (H.I. 



Hcd. Matrand (B. L.). Opl. Ringebu (.Somrft.), Hadeland: Brandbu- 

 kampen (B. L.l. 



Nordl. Saiten: Skjerstad (Somrft.). 



Cladonia macilenta is more a forest species than C. Flocrkeana, it i«, 

 accordingly, more common in inland provinces than on the coast. In our 

 country it is chiefly found on old decayed stumps of Finns silvester and 

 Picea cxcclsa, often associated with C. digitata and other Cladoniac), but also 

 on peaty soil and in Ericeta. It is a lowland species, not recorded higher 

 than 6 — 700 m. s. m., and much less common in Northern than in Southern 

 Norway (not recorded north of Lofoten). On the whole it is a common 

 species in our southern lowland forests, but it is no conspicuous species 

 and has evidently been overseen by many collectors. 



Our Norwegian material does not present so many variations as the 

 French and German plants described by Harmand and Sandstede. By far 

 the greater part of our plants belong to f. styracella (Ach.), but plants 

 approaching to f. corticata Waln. and especially to f. sqiiamigcra Waln. are 

 occasionally seen, a typical f. sqnaniigera has been recorded from Vasser. 



