90 likes | 712 Views
Eastern White Pine Pinus strobus Longitudinal Resin Canal Thin-walled epithelial cell. Eastern White Pine Pinus strobus Transverse r esin c anal in fusiform ray Thin-walled epithelial cell. Eastern White Pine Pinus strobus Cross field pitting
E N D
Eastern White Pine Pinusstrobus Longitudinal Resin Canal Thin-walled epithelial cell
Eastern White Pine Pinusstrobus Transverse resin canal in fusiform ray Thin-walled epithelial cell
Eastern White Pine Pinusstrobus Cross field pitting Two rows of ray parenchyma with fenestriform half-bordered pit pairs. Multiple rows of ray tracheids.
Douglas-fir Pseudotsugamenziesii Longitudinal resin canal Thick-walled epithelial cells
Douglas-fir Pseudotsugamenziesii Fusiform ray Thick-walled epithelial cells
Douglas-fir Pseudotsugamenziesii Ray crossing area Ray parenchyma Ray tracheids Spiral thickenings – tend to be more obvious in earlywood.
Douglas-fir Pseudotsugamenziesii Ray crossing area Ray parenchyma Ray tracheids Spiral thickenings