Further observations on pentoxylon sahani Srivastava from the Jurassic of Amarjola in the Rajmahal hills

Abstract

Anatomy of thick as well as thin stems of Penloxylon sahnii is described. In the former vascular bundles are concentric while in the latter they are sharply endocentric. Leaf traces originate from the centrifugal xylem of the main bundles and a number of them supply a leaf base. In the light of recent discoveries, relationship of Penloxylon with allied fossil woods is also discussed.