or-.;; STANCE OF WHITE FINES IN EUROPE 239 



FINUS ST nr ~" 



This specie? wi : 1 be covered in dep + h by Mr. Gremmen, in the paper 

 that fel lows 



CONCLUSION 



Pinus arvundii, F. peuce, P. griffithii and to some extent F, ce^bra 

 seem to possess different degrees of resistance against attack by C. 

 ribicola. Little has been done to investigate the variation of resistance 

 within species. In some cases this is because it is difficult to go into 

 the natural distribution area; in other instances it is impossible to 

 overcome the economical barrier connected with such a project. This 

 investigation will b° made when necessity demands it, Therefore we have 

 to face the problems now, to plan the procedure and distribute the tasks 

 to be carried out by relevant people and countries. 



' iTERATURE CUED 



, J. S. 1926. Observations on white pine blister rust in Great 



Britain and Denmark. J. Forest. 24: 893-896. 

 British Forestry Commission. 1960. Cronartium ribicola, p. 69. In 



Report of fore c t research, 1959. Forestry Commission, London, England. 



186 p. 

 British Forestry Commission. 1961. Weymouth pine rust, Cronartium 



ribicola., p. 61. In p epoi t of forest research, I960. Forestry 



Commission, London, England. 203 p. 

 Puchanan, T. S. 1964. Diseases of white (5-needle) pines, p. 100-120. 



In Diseases of widely planted forest trees. FA0/F0RPEST-6 . U.S. 



Dep. Agr . Forest Serv. 237 p. 

 Dietrich, H. A. 1856. Blicke in die Cryptogamenwelt der ostseeprovinzen, 



p. 261-416. In Arch, Naturk. Liv., Esth- u. Kurlands, S. 2., Biol. 



Naturk. , Bd. 1, Lfg. 4. 

 Hahn, G. G, 1929. Preliminary report on a variety of red currant resis- 

 tant to Weymouth Pine rust. " r rans. and Proc. Bot . Soc. Edinburgh. 



30: 2. 

 JOrstad, J. 1949. Melding om Sykdommer pa skogtraeerne i 1942-47. 



Arsmeld, Oslo. 9 p. 

 Klebahn, H. 1888. Weitere Beobachtungen liber die Blasenroste der Kiefern 



Deutsch. Bot. Ges. 6: 45-48. 

 Meyer, H. 1954. Zur Blasenrost-Resistenzztichtung mit Pinus strobus. 



Zeitschrift f. Forstg. u. Forstpf. Silvae Genet. 3: 101-104. 

 Schenck, C. A. 1939. Fremdiandische Wald- und Parkbaume, Sweiter Band. 



Paul Parey, Berlin. 645 p. 

 Spaulding, P. 1929. White-pine blister rust: A comparison of European 



with North American conditions. U.S. Dep. Agr., Bur. Plant Indus. 



Bull. 87. 58 p. 



FLOOR DISCUSSION 



Panel leader Bingham withheld discussion of this paper until after 

 two other closely related papers, one by Gremmen, the other by Bakshi, 

 had been given. The di Hussion will be found following the Bakshi paper, 



