Botany online 1996-2004. No further update, only historical document of botanical science!


Pith Rays in a Wood Cross-Section

To the left: Platanus acerifolia, with annual ring and a multilayered pith ray, diffuse-porous wood. To the right: Mahonia angustifolia (multilayered pith rays, vessels with extremely small lumina, diffuse-porous wood).

© Peter v. Sengbusch - Impressum