2o8 HERNT LYNrj:. M.-N, Kl. 



()ii old wood (u'ood-fi-iices, roofs, and lin like), and especially on the 

 stems and tvvii^s of old dead Piiius Silvester near the tree line. Such old 

 trees are called 'Gadd' in Østerdalen, and this lichen 'Gadd-mose'. 



It is a species of eastern continental distribution. It is rather common 

 in the Tryssil valle\' and at l'"ænuinden, less common in Østerdalen, and 

 evidently rare in Gudbrandsdalen, from which valley it has surpassed the 

 mniintains to Romsdalen. — Only sterile in Norway. 



2. Letharia divaricata IL.) Hue. 



Ihtsk. llcnsmocn (I). L. ). 



Opl. llundir (1>. L.I, Aronsve (Tii. Fr.I, Sell (Norm.), Vaage (Norm.), 

 Presteberget (11.1. 



Nordtr. Tevldalen (M. N. Bl.). 



A rare, eastern, continental species, only seen sterile in our country. 



3. Letharia mesomorpha (Nyl.) Du Rietz. 



Hcd. Herjehaagna (Gustafsso.x, v. Du Rietz Lieh. Fragm. I p. 428). 

 Op/. Ringebu (hb. Somrft.), Toten (hb. (Somrft.). 



A very rare, eastern, continental species in our country, our speci- 

 mens are sa.xicolous, well developed, but sterile. 



20. Alectoria Ach. 



1. Alectoria jubata (L.) Nyl. 



Øsff. Kornsjø (B. L.). Akcrsli. Holand: SkuUerud (B. L.I, Aker: Ryen- 

 berget (Moe), Bogstadaasen (Th. Fr.), Kristiania (Norm.), Nordmarken very 

 common (B. L.), Bærum (H.), Asker: Nesøen (B. L.), Romerike: Hersjoen 

 (B. L.). Vest/. Yasser (B. L.), Larvik (Norm.I, TjoUing (Høeg), Svenor 

 (Høeg), Stavern (Norm.), Fredriksvern (Norm.). Busk. Krokkleven (Kiær), 

 Norderhov (Norm.), Krekling (B. L.), Holsvand (B. L.). 



Tclem. Bolkesjø (Kiær). Austagd. Lyngør (B. L.), Sætesdalen: Helle 

 (SøR.), and Viki (Sør.). Vestagd. Mandal (B. L.). Rog. Rægefjord (H.). 



Hot'd. Moster (H.), Stord (Norm.), Fitjar: Aalforo (Lid), Store Kalsø 

 (B. L.), Ask (Norm.), Hardangervidda: Grananuten (H. I, Voss (B. L.), Mjøl- 

 fjell (B. L.). Sogu. Stat (H.), Lærdalsoren (Kiær), Filefjell (M. N. Bl.). 

 More. Sundalen (H.). 



Hcd. Galterud (B. L.), Matrand (B. L.), Solør: Haslemo (B. L.), and 

 Jesaasvand (B. L.), Elverum (B. L.), Tron (B. L.), Hanestad (B. L.), Tyldalen 



