The studies were carried out in stands of the Carpathian Mts. and the Sudety Mts., where pine is a dominant species. The selected pine stands were probably of local origin. The aim of the studies was the characterization of chosen site and stand traits and morphology of pines on the basis of about 20 dominate pine trees. Very low cone crop and the lack of natural pine regeneration on the one hand, and cases of climax species regeneration on the other were found in the stands. Sometimes pine enclaves occupied small areas (1/3, 1/2 ha) in the studied stands. The number of pines often amounted to about 100 per ha. The studied stands were characterized by high stability (80% of trees showed the ratio of height to D.B.H. (H/D) between 45 and 80), large diversity of stem quality (36% of trees were qualified as class A), some significant heights (up to 37 m) and good vitality. When compared to the Carpathian ones, Sudetic pine stands grew on poorer sites and on average were characterized by older age, lower values of all analyzed traits (of stems, crowns and needles), lower iron content in needles, higher stem quality (81% of trees in class A in Sudetic stands, 24% of tress in class A in Carpathian stands) and better vitality. Pines from the Sudety Mts. were distinguished by the shell-shaped type of bark, which occurs very seldom in the Carpathian Mts.
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