I92I. No. 7- STUDIES ON THE LICHEN FLORA OF NORWAY. 61 



On mossy ground everywhere, especially in the forest, in Cladonieta 

 on sunny rocks and in open Piniis-i'orest, also on sandy and gravelly 



substratum. 



f. gracillima Norrl. 



This is a rare plant in Norway, recorded only from Tron (1). L.) in 

 Østerdalen, agreeing entirely with Norrl. et Nvl. 424, and from lladsel- 

 oen in Nordland (Norm. I, det. Th. Fr. f. tcncrrima. 



f. aspera Flk. 



Osf/. Fredriksstad: Græsvik (B.L.I, Larkollen (B. L.), jvlovn (B. L.l. 

 Akers/i. Drobak (B. L.), Ski-Nesset (B. L.), Nordmarken: Kikut (B. L.l. J'rsff. 

 Tonsberg: Foyenland (B. L.l, Nottero (B. L.l, Tjomo (B.L.I, Lar\ik: \'iks- 

 fjorden (B. L.), Svenor (HøegI. 



Tc/rni. Brevik: Sandøen (B. L.l. Aiisfagd. Lyngor very frequent 

 (B.L.I, Arendal (B.L.I, Aamli: Nergaren (B.L.I. Vrs/agd. Kristianssand: 

 Vaagsbygden (B. L.l, Sogne: Hollen (S0R.I, Hægeland (Sor.I, Mandai: Riso- 

 bank (B. L.l, and Skjernoen (B. L.l. 



Hord. Ytre Aakerod (B. L.l, P\Lsa: Strand vik (Lillef.1, Granxin (H.l. 



0/>/. Dovre: Gjeiteryggen (Zett.I. 



Nord!. Torghatten (Lml, Saltdalen (Somrft.I, Hadseloen (Norm.I. 

 Trains. Ramfjorden (B. L.l, IMikkelvik (B. L.l. F/i/iii. Skjotningberg (B. L.l, 

 Berlevaag (B. L.l. 



C/ad. graci/is var. aspera is a very variable plant. Plants like Rehm 

 No. 33 approach to var. cliordalis, they are squamose, but agree habitually 

 with the latter. Such plants occur in Norway, but they are not common. 

 They prefer moist, somewhat shady stations. Other plants are more 

 intricately ramose, with short 'internodia' and short arcuate branches, often 

 quite caespitose, densely squamose, resembling CI. rangiformis. The colour 

 may be pale glaucous, but more frequently podetia as well as squamules 

 are dark brown. These dark, sunburnt aspera-îormzt are the most fre- 

 quent gracilis-{ormz& along our south and west coast, they are found on 

 sunny, mossy rocks, associated with CI. inacrophyllodcs, cocci/era (f. alpiiia), 

 bcllidißora, rangiformis, and mosses \Rliacomiiriiim). 



var. aspcra is a coast or at least a lowland plant, in Granvin (Hard- 

 anger) it ascends to 325 m. s. m. It is rare and often untypically developed 

 north of Lofoten. 



var. elongata (Jacq.) Flk. 



Bns/c. Hoi: Odnak (B.L.I, GJeilo (B.L.I, Haugastol (B. L.l. Follaskaret 

 (B. L.l, Nore: Hallandsfjell (Ki.krI. 

 IWnii. Berdalsskaret (M. N. Bl.I. 



