1 6 BERNT LYNGE. M.-N. Kl. 



consider temperature. Within certain limits the cold of winter is not per- 

 nicious, for it is recorded from places in Central Europe with a low winter 

 temperature (Black Forest, Tirol). 



Probably the summer temperature (May September) is the decisive 

 factor. Anapt. speciosa in our country grows farther north than in any 

 other country. In southern countries An. speciosa grows on bark and on 

 mossy rocks. In Norway it is only recorded as muscicolous, which is 

 generally considered an indicium that a Lichen grows near its climatic limit. 

 In our country An. speciosa certainly requires as much warmth as it can 

 obtain. The temperature is to a large extent dependent on exposure to 

 the sun. But owing to the vicinity of the great mountain masses the 

 summer temperature is higher at the upper parts of our valleys than at the 

 lower parts and on the plains. 



If the summer temperature should be a decisive climatic factor for the 

 distribution of some Lichens, we might expect to find other Lichens limi- 

 ted by summer isotherms. The discussion of this interesting point must, 

 however, be deferred to a later work. 



3. Anaptychia ciliaris (L.) MASS, KBR. 



Lichen ciliaris LINNE Species plantarum (1753) p. 1144. GUNNERUS 

 Flora Norvegica vol. II (1772) p. 58. Flora Danica (1777) tab. 711. WUL- 

 FEN Plantae rariores Carinth. in JACQUIN Collectanea vol. IV (1790) p. 244. 

 ACHARIUS Prodromus (1798) p. 173. HUDSON Flora Anglica ed. II (1798) 

 P- 538. 



Parmelia ciliaris ACHARIUS Methodus (1803) p. 255. 



Physcia ciliaris DECANDOLLE Flore de France II (1803) p. 396 (non 

 vidi). SCHAERER Enumeratio critica (1850) p. 10 tab. II fig. i. NYLANDER 

 Lich. Scand. (1861) p. 108. DEICHMANN BRANTH et ROSTRUP Lichenes 

 Daniae (1869) p. 63 (Sep. of Botanisk Tidsskrift vol. III). TH. FRIES Lich. 

 Scand. I (1871) p. 132. CROMBIE Brit. Lich. I (1894) p. 302. OLIVIER 

 Etude sur les . . . Physcia. Revue de Botanique (1894), P- 8l (33)- LI ' 

 VIER Lich. d'Europe I (1907) p. 232. GALLOE Danske Lich. 0kol. Botan. 

 Tidsskr. vol. XXVIII, tab. XV, fig. 79 . LYNGE De norske busk- og blad- 

 laver Berg. Mus. Aarb. 1910, no. 9, p. 99, et tab. IV fig. 5. 



Borrera ciliaris a ACHARIUS Lichenographia Universalis (1810) p. 496. 



Hagenia ESCHW. Hagenia ciliaris SCHWENDENER Untersuchungen 

 iiber den Flechtenthallus in NAGELI Beitrage II (1860) p. 161, tab. V, fig. 

 1213. 



