Anatomical Properties of Compression Wood of Three-Year-old Loblolly Pine Induced by Artificial Inclination An Overview of the Biology of Reaction Wood Formation Comparative Anatomy of Normal Wood and Compression Wood of Masson Pine(Pinus massoniana) Cellulose structure and lignin distribution in normal and compression wood of the Maidenhair tree (Ginkgo biloba L.) Effect of Stem Bending Angle on Formative Tissue During Wood Formation of Pinus koraiensis RESEARCH ON THE DISTRIBUTION OF CELLUIOSE CRYSTALLINITY IN COMPRESSION WOOD Comparison on the Lignin Structures of Normal and Compression Wood of Masson Pine