72 BERNT LYNGE. M.-X. Kl. 



\ai-. cerasphora (Wain.i. 



ni/sÅ: Ilaugastol (P,. L.), I'f.llaskaret {H. L.l. 



Hord. I'^insehogda (Sam.}, Kirkesdørnuten (B. L.). 



Hed. Fæmunden: Sydenden (B. !..). Opl. Lom: Fossæter (B. F.l. 



Sørtr. Fæmunden: Sørvika IB. L.l. 



Troiiis. AltcvancL Dividalcn (B. L.l. /■'iiiiii. Alten (frequent): Skodda- 

 varre (Zf.tt.), Store Raipas (B>. L.l, Kautasvarre (summit, B.L.I; Kara.sjok: 

 Sjuollejavre (Norm.); Lakseljord: Nordkyn (B. L.); Tana: Risljorden (B. L.). 



W.M.N'io Mon. Clad. II p. 159. LA.xfi Nagra sällsynta eller for Sverige 

 nya Cladonia-arter. Bot. Not., 1912 p. 36. Di; Rietz Lieh. Fragm. Svensk 

 Bot. Tidskr. 1915 p. 425. 



According to Wai.mo 1. c. Cl. gracilcscciis and Cl. cerasphora differ 

 in the development of the scyphi, the former has scyphi, the latter not. I 

 cannot look upon this character as a specific one, it is a little constant 

 character in this genus. This is also the case here, there is every transi- 

 tional stage between well developed scyphi and no scyphi at all. 



Alpine plants from very exposed stations are stunted, poorly deve- 

 loped, evidently damaged by frost, or the}' may get a habitus approaching 

 to CI. gracilis f. elongata. 



Wainio describes three formae of CI. cerasphora: il stricta \wo ox {ç\\ 

 squamules), 2) ptrropliora (squamose), 3) hypophylla (shorter podetia, per- 

 sistent thallus Primarius I. CI. gracilesccus has just the same \ariation. A 

 '{. stricto' of this species is not rare, but the greater part of our material 

 belongs to a 'f pteropoda\ 



CI. gracilesccus is a frequent plant on our mountains, best developed 

 near the tree line, but also found lower down (in Western Norway regu- 

 larly down to 350 — 250 m. s. m.). It prefers places between large stones, 

 alternately submerged and dried up, but it also grows at moist moss}' river- 

 sides (brooklets!, on rocks covered with poor soil and often irrigated, on 

 turf-covered roofs, only exceptionall}' at really dry places. 



var. cerasphora is more common than the type at \-ery great eleva- 

 tions, it ascends to 16 — 1700 m. s. m. (or more?), but so far down as 

 the tree line it is less common and not quite typically developed. I have 

 seen but few specimens from the regio sih-atica. — The greater part of 

 our material belongs to f^. pterophora, Ï. stricta is rare. — 



The positive reaction with KOH is not intense in this species. — 



Our museum possesses a small type specimen of 'Cladouia stricta Nyl'. 

 = var. cerasphora f. stricta Waix. Mon. Clad. 11 p. 169, 170. 



