Page:The Oak.djvu/77

From Wikisource
Jump to: navigation, search
This page has been validated.
59
THE SEEDLING AND YOUNG PLANT.
The Oak (Marshall Ward) Fig 15.jpg

Fig. 15.— Tangential longitudinal section of wood of oak (highly magnified). To the left is a large medullary ray (M.Str), and numerous small ones are seen in various parts of the section—of course, in transverse section. Librf, wood-fibers; Gef, smaller pitted vessels; Trach, tracheids; H.P., wood-parenchyma. (Kny.)