122 RICHARD SCHMITT 



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Jahresber. Deutsch. Forstver. 529 p. 

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Behandlung der Weymouthskiefer, p. 330-348. In Jahresber. Deutsch. 



Forstver. 529 p. 

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No. 12. 6 p. 

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FLOOR DISCUSSION 



Moderator Bingham withheld discussion on the previous paper by 

 Dr. Kurt Holzer until after Dr. Hans Hattemer (substituting for Dr. 

 Richard Schmitt due to his illness) read Dr. Schmitt's closely related 

 paper. Discussion on both papers follows. 



HEIMBURGER: I want to ask Dr. Holzer, what is the lime requirement 

 for Pinus peuce? In Canada we have found that P. peuce cannot tolerate 

 acid soils as well as Pinus strobus. P. peuce can grow moderately well 

 on acid soils, but it grows very well in calcereous soils. In your 

 paper you mentioned the very calcereous soils of the Alps and other places. 



HOLZER: It is reported in the literature that P. peuce is grown 

 only on basic soils. I think Dr. Vidakovic, from Yugoslavia, might be 

 able to answer more completely. 



HEIMBURGER: I see. So it checks with your observation. It cannot 

 stand acid soils. It needs fairly neutral soils. 



VIDAKOVIC: I don't know too much about P. peuce because it occurs well 

 to the south of my station, in the state of Macedonia. However, I have been 

 in Macedonia, and I know the people working with P. peuce. I remember once 

 in a discussion with Bozidar Nicota, Director of the Forestry Institute in 

 Skopje, he told me there are P. peuce stands growing on acid soils, but in 

 very small patches. Nicota was of the opinion that maybe there are two 

 types of P. peuce in Yugoslavia. I have seen P. peuce in the Pelister 

 Mountains on calcareous soils. It's from Nicota that I understand that 

 in Macedonia there's a type growing on acid soil too. 



HEIMBURGER: The seed dealers in North America supply most of the 

 Pinus griffithii seed- -from northern Italy. What we would like to know 

 very much is how P. griffithii behaves in northern Italy. 



DUFFIELD: I have seen P. griffithii in two general situations in 

 northern Italy. I did not travel extensively there, but in one area where 

 the species is famous in'Yugoslavia (formerly an Italian area, where the 

 species was planted by the Italians) it is on somewhat acid soils growing 

 with Quercus rubra and the two species are doing very well together. 

 Further to the east around Trieste, it's growing very well on calcareous 

 soils, and the experience there is that it does better than P. strobus 



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