论文部分内容阅读
在观察国产针叶树材中发现：１．杉松冷杉（ＡｂｉｅｓｈｏｌｏｐｈｙｌａＭａｘｉｍ．）的轴向管胞早材径壁有显然不同大小的二类具缘纹孔存在；２．落叶松属（Ｌａｒｉｘ）木材的射线薄壁细胞有主为长随圆形和主为等径形二类，据此可以区分落叶松组（ＳｅｃｔｉｏｎＭｕｌｔｉｓｅｒｉａｌｅｓ）和红杉组（ＳｅｃｔｉｏｎＰａｕｃｉｓｅｒｉａｌｅｓ）；３．西藏长叶松（ＰｉｎｕｓｒｏｂｏｕｒｇｈｉＳａｒｇ．）木材的射线管胞显著地较其它树种量多而低矮；４．金钱松（ＰｓｅｕｄｏｌａｒｉｘａｍａｂｉｌｉｓＲｅｈｄ．）的轴向薄壁细胞中，云杉（ＰｉｃｅａａｓｐｅｒａｔａＭａｓｔ．）、油松（ＰｉｎｕｓｔａｂｕｌａｅｆｏｒｍｉｓＣａｒ．）和冷杉（ＡｂｉｅｓｆａｂｒｉＣｒａｉｂ．）轴向管胞中有晶体存在。
In the observation of domestic coniferous wood found: 1. Abies holophynsisMaxim. Axial tracheids early diameter wall with apparently different size of the second type of margin pits exist; 2. Larch (Larix) wood ray parenchyma cells are mainly long with the circle and the main isometric two categories, which can distinguish between the Larix group (SectionMultiseriales) and Sequoia group (SectionPauciseriales); The ray tracheids of Pinus roburghi Sarg. In Tibet were significantly more and less than those of other species.4. Axial parenchyma cells of Pseudolarix amy orientalis, Picea pepeta Mast, Pinus tabulaeformis Carr., And Abies fabri Brachy.