1. Proliferated seed cones and pollen cones in young black spruce

   • Guy E. Caron
   • Graham R. Powell

   Original Articles Pages: 65 - 74

2. Influence of climatic factors upon tree rings of Larix decidua and L. decidua × L. kaempferi from Pulawy, Poland

   • Jacek Oleksyn
   • Harold C. Fritts

   Original Articles Pages: 75 - 82

3. Fluoride effects on leaf cell ultrastructure of olive trees growing in the vicinity of the Aluminium Factory of Greece

   • Eleftherios P. Eleftheriou
   • Ioannes Tsekos

   Original Articles Pages: 83 - 89

4. Comparative studies on ectomycorrhizae synthesized with various in vitro techniques using Picea abies and two Hebeloma species

   • Ivano Brunner

   Original Articles Pages: 90 - 94

5. Quantitative and localized element analysis in cross-sections of spruce [Picea abies (L.) Karst.] needles with different degrees of damage

   • D. Godde
   • S. Divoux
   • B. Gonsior

   Original Articles Pages: 95 - 100

6. Tracheid production in response to indole-3-acetic acid varies with internode age in Pinus sylvestris stems

   • C. H. A. Little
   • B. Sundberg

   Original Articles Pages: 101 - 106

7. Preformed and neoformed extension of shoots and sylleptic branching in relation to shoot length in Tsuga canadensis

   • Graham R. Powell

   Original Articles Pages: 107 - 116

8. Changes in hydraulic conductivity upon freezing of the xylem of Populus x canadensis Moench “robusta”

   • J. Just
   • J. J. Sauter

   Original Articles Pages: 117 - 121

9. Nutritional exploitation of dead trunks: another function of cypress knees (Taxodium distichum)?

   • Hans Kummer
   • Marco Brandt
   • Monika Meier

   Short Communication Pages: 122 - 123