PROCEEDINGS 



OK THE 



CALIFORNIA ACADEMY OF SCIENCES 



Third Series 

 Botany Vol. II, No. lo 



The Root-tubercles of Bur Clover 



( Medicago denticulata Willd.) 



and of Some Other Leguminous Plants. 



BY 



George James Peirce 



Associate Professor of Plant Physiology in the Leland Stanford Jmtior University 



With One Plate 

 Issued June 21, igo2 



SAN FRANCISCO 



Published by the Academy 



1902 



