Striations that appear in some wood species when quartersawn. These are usually visible in oak with a golden color.
Radial vertical tissues, extending across the growth rings of a tree, that enable the transmission of sap and produce a decorative spotted figure in quarter-sawn boards (especially oak and sycamore).
Strips of cells extending radially within a tree. The rays serve primarily to store food and transport it through the tree. In some hardwood species, the rays form a conspicuous figure sometimes referred to as flecks. See Flecks.
These are thin plate like layers of special cells reaching from the pith to the Cambrian layer. They transport food horizontally in the tree from the bark to the pith. They also store food and are very predominantly visible in some trees for example oak and barely visible in other trees for example Pinus.
Strips of cells extending radially within a tree and varying in height from a few cells in some species to four or more inches in oak. The rays serve primarily to store food and transport it horizontally in the tree. On quartersawn oak, the rays form a conspicuous figure, sometimes referred to as Flecks.
Cells that radiate from the central part of a log, much like the curved spokes of a wheel. ( primarily oak).
Medullary rays (also called wood rays) are bundles of cells that radiate from the center of a tree like the spokes of a wheel (they are most easily seen in the cross section of a tree trunk). They store food and transport it horizontally within the tree.