PROCEEDINGS 



OF 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 Junior University 



I 



With One Plate 

 Issued June 21 , /go2 



SAN FRANCISCO 



Published by the Academy 

 1902 



,iS 



