Simply begin typing or use the editing tools above to add to
this article. Once you are finished and click submit, your
modifications will be sent to our editors for review. A
transverse section of trunk also shows linear features called
rays radiating from pith to bark and ranging in width from very
distinct, as in oak, to indistinct to the naked eye, as in pine
and poplar. Certain softwoods, such as pine, spruce, larch, and
Douglas fir, possess resin canals. In a transverse section
examined with the naked eye or a hand lens, resin canals appear
as small dark or... What made you want to look up "ray"? Please
share what surprised you most...