214 



liKUNT LVNGK. M.-N. Kl. 



H. Aloctoha nitiduUi In. I"j<. 



Southern Norway: Dovrc (In. I'k.I. 



Northern Norway: Nordland (M. N. I>i..); V'aran^er: Mortensncs (Tii. l'"i<.l, 

 Kliihhcii (Til. I'"i<.), I'icdhciiii (II. I, l'lU'cnes (II.), and jakf^b.selven (Norm.). 



It resembles y/, (iivcri^ciis, hut it is smaller. There are some small 

 \ery scarce uncoloured hairs on the cortex of either species, resembling 

 the hairs of some Pdi-iiiclidc [P. glabra, P. subargentifcra). 



The medulla of A. iiilidiihi is C -v- , C + K rubescens, that oï A. diver- 

 gens: C + rubescens. 



.9. Alectoria nigricans (Acii.) Nyl. 

 Map XII, 5. 



Busk. I loi: Lid-sljell (B. L.), lIauga.stol (B.L.I. 



/Ion/. Tysnessaata (H.), Bergen: Fløien (H.), Granvin: common, Nes- 

 heimshorgje (H.), Hardangervidda: Haarteignuten summit (H.), and Grao- 

 berg (H.), Voss (H.). Sogn. Upper Sogn : common on the mountains (H.), 

 Stat (H.), Lyster: Berdaksæter (H.). Møre. Molde (H.), Romsdalen (H.), 

 Sundalen: Gjeitaadalen (H.). 



Ned. Lille Elvedalen (B. L.), Tron (B. L.), Gronfjell (B. L.l. Op/. Næver- 

 tjell (H.), Vaage: Kleivsæter (B. L.), Lom: Kjæstad (B. L.l, and Lomseggen 

 (B. L.). 



Sorlr. Høgsnydda (Th. Fr.), Røros: Stenfjellet (B. L.l. 



Nord/. Folla: Kjærringø (Wbg.), Fagerbæk (Norm.), Hadseloen (Norm.). 

 Trains. Kvætjord (Norm.), Sørreisa: Gumpendalen (Norm.), Maalselven: 

 Nordby nesset (B. L.), and Vasbræen (Norm.); Ramijorden (B. L.), Floifjell 

 (Norm.), BalsQordeidet: Sorfjelltind (Norm.), Lyngen: Lyngseidet (B. L.), and 

 Helligskogen (B. L.). Finiii. Alten: Oksljord c. fr. (Norm.), Skillefjordbotn 

 (B. L.), KonsamQell (B. L.), Bosekop (Baur), Store Raipas (B. L.l, and Rau- 

 tasvarre (B. L.); Hammerfest (Wbg.); Porsanger: Borselv (Norm.), and Laks- 

 elv (B. L.); Karasjok: Jesjok (Norm.), Dakteroavve (B. L.); LakseÇorden : 

 Nordkyn (B. L.), Lebesby (B. L.), and Skjøtningberg (B. L.); Tana: Kongs- 

 oen (Høeg), Risfjorden (B. L.), Berlevaag (B. L.), Gullholmen (Th. Fr.I, 

 Solevarre (Norm)., Fjelbma (Th. Fr.), and Lævajok (B. L.l; Varanger: Ny- 

 borg (Th. Fr.), Mortensnes (Norm.), Thomasdal (Norm.), Styrene (Th. Fr.), 

 and Elvenes (Th. Fr.). 



A/ectoria nigricans is common though not abundant on all the moun- 

 tains of Southern Norway. It is typically an alpine plant which rarely 

 descends lower than the tree line. In Northern Norway it is much more 

 frequent than in Southern Norway, and occasionally quite abundant, on 

 continental mountains as well as on the coast. North of Lofoten it descends 

 to the level of the sea. 



