Figure 9 in A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA

Figure 9. Fagaceae. Quercinium sp, UF 278-84878. A. Diffuse- to semi-ring-porous wood; vessels exclusively solitary, very slight tendency to diagonal arrangement, TS. B. Simple perforation plates (PP), RLS. C. Vasicentric tracheids, uniseriate rays, axial parenchyma strands, TLS. D. Vessel-ray parenchyma pits with reduced borders to simple, tyloses, RLS. E, F. Rays of two distinct sizes, TLS. Scale bars=200 µm in A, E; 100 µm in B, C, F; 50 µm in C; 20 µm in D.