Figure 2
From: A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution
Ginkgoxylon liaoningense sp. nov. from western Liaoning, China.
(a) Transverse section with a well-marked growth ring. Scale bar = 100 μm. (b) Transverse section with intercellular spaces (red arrows) and locally destroyed walls (black arrows), possibly resulting from a fungal attack. Scale bar = 40 μm. (c) Tangential section; note the tracheid tip contiguous to the ray margin. Scale bar = 100 μm. (d) Tangential section with inflated axial parenchyma associated to a ray (red arrow). Scale bar = 60 μm. (e) Tangential section with tracheid tips associated to inflated axial parenchyma or to ray parenchyma. Scale bar = 100 μm. (f) Tangential section with inflated axial parenchyma associated to a three-cell ray (red arrow). Scale bar = 40 μm.
