1916. No. 8. MONOGRAPH OF THE NORWEGIAN PHYSCIACEAE. 19 



uncoloured. Pycnoconidia straight, narrowly ellipsoidical or cylindrical, 

 3 4 ," ' on g- 



React.: The whole thallus unaltered by KOH as well as by 

 CaCLCX. Hymenium first blue by J, then at last sordid bluish-black, asci 

 subpersistently blue. 



Hab. On the stems of large deciduous trees in open positions, as 

 avenue trees or clusters of trees on cultivated ground. 



Loc. Very frequent or even abundant in the south-eastern lowlands. 

 Northern limit Trondhjem. Abundant east of the Kristiania fjord: Fred- 

 riksstad (SCHUBELER), Aas, Ski, and Nesset (LYNGE), Aker about Kristiania 

 (M. N. BLYTT and N. G. MOE), Baerum and Nordmarken (LYNGE), west of 

 the fjord only recorded from Larvik (SOMMERFELT), and from Hedrum (NOR- 

 MAN). South-eastern lowland : Hurdalen (SOMMERFELT), Minne (LYNGE), 

 Tregstad (SOMMERFELT). South-eastern valleys: Torpen in Gudbrandsdalen 

 ( KINDT), Dovre (M. N. BLYTT), Vangsmjosen in Valders (NORMAN), Mel- 

 dalen (GUNNERUS) and Ilsviken (KINDT) near Trondhjem. Very rare in 

 Western Norway, only recorded from Veringfossen in Eidfjord, Hardanger, 

 on mossy rocks (very narrow laciniae, almost the habitat of A. leucome- 

 laena (HAVAAS). 



Plants from more elevated situations have a dark thallus with narrow 

 laciniae and are frequently sterile. 



var. melanosticta (AcH.) HARM. 



Partnelia cilia ris y melanosticta ACHARIUS Methodus (1803) p. 255. 



Borrera ciliaris var. melanosticta ACHARIUS Lich. Univ. (1810) p. 497. 



Lichen ciliaris WAHLENBF.RG Flora Lapponica (1812) p. 434. 



Physcia ciliaris var. saxicola NYLANDER Enumeration. Mem. Soc. Imp. 

 Science Cherb. vol. V (1857) p. 106. NYLANDER Synopsis (1860) p. 414 CROM- 

 BIE Brit. Lich. I (1894) p. 303. 



Physcia ciliaris var. scopulorutn E. NYLANDER Alands Laf-veget. Not. 

 Sallsk. pro Fauna et Flora Fen. forh. vol. Ill (1857) p. 86. TH FRIES Lich. 

 Arct. (1860) p. 61. 



Physcia ciliaris (i melanosticta TH. FRIES Lich. Scand. I (1871) p. 133. 



Anaptychia ciliaris f. melanosticta HARMAND Lichens de France (1907) 

 p. 447. 



