Birbal Sahni Institute of Palaeobotany <br/><br/>
Symposium on Origin & Phytogeography of Angiosperms  Pub No 1 

 -  B S I P, Lucknow 
 - pp 83, pls 5;   24*18 
<br/><br/><label>Dewey Class. No.: </label>I6Zp2,N71/N74/B14032