Studies in the Glossopteris flora of India - 7. Dadoxylon jhariense sp. nov. from the Jharia coalfield, Bihar

Abstract

A new species of fossil wood, Dadoxylon jhariense, is described from the Barakar stage of the Lower Gondwanas of India. The wood possesses distinct growth rings, a solid pith, continuous ring of endarch primary xylem and secretory sacs in the pith. Circular pits are rarely present on the tangential walls of the tracheids. Pitting on the radial wall of the tracheids usually uni-, bi-, triseriate or rarely more; pits round to elliptic, contiguous, rarely separate, usually alternate, sometimes opposite or sub-opposite. Medullary rays less numerous and low. Pits in the field 2-6 having elliptic with obliquely placed pores.