ey 
i 
158 The Botanical Gazette. [May, 
Original investigations. : 
Four years ago while engaged upon a study of the nematode — 
root-galls' of various cultivated plants, I was led to investigate 
with some care the morphology and anatomy of the legumi- — 
nous tubercles and their contents in order primarily 
discover differential characters which could easily form the 
basis for the accurate separation of the tubercles from nem q 
atode galls which frequently occur on the same roots 
A brief résumé of the results of the leading investigations up 
to that time was presented along with the results of the root 
gall study. 
zt 
that time, I was led to undertake some personal investi 
Tt has 
those of genera. 
‘ Vi tia sativa, from the tubercles of which pure cultu® 
_© Organisms were obtained, they are digitate, and 
simple or forked di- or tri-chotomously. They vary ® 
mm 
i : 
A preliminary 5 cnabaeeiel of a 
. 
jience Contrib. Vol. I. 20 ©" 
