地盘松［Ｐｉｎｕｓ ｙｕｎｎａｎｅｎｓｉｓ Ｆｒａｎｃｈ． ｖａｒ． ｐｙｇｍ ａｅａ （Ｈｓüｅｈ） Ｈｓüｅｈ］ 与云南松（Ｐ．ｙｕｎｎａｎｅｎｓｉｓＦｒａｎｃｈ．）种植在同一地区同一年份，发现地盘松生长在环境良好的地区仍保持其矮生特征。其木材结构与表现型矮生松树有一些共同特性，如：管胞长度较短，直径变窄，树脂道增多且多集中在晚材，早材与晚材分界不明显等。但是，这种遗传型矮生松树的茎干内部很难看到像表现型矮生松树那样常见的扭曲管胞 Pinus yunnanensis Franch. var. pygm aea (Hsüeh) Hsüeh] and P. yunnanensis Franch. were planted in the same area in the same year, and found that the habitat growth still maintained its dwarf characteristics in a well-nosed area. The wood structure and phenotypic dwarf pine have some common characteristics, such as: tracheid length is shorter, diameter narrowing, the resin road increases and more concentrated in latewood, earlywood latewood boundary is not obvious. However, it is difficult to see the inside of the stems of this dwarfed psylliform pine,