VOLUME LXIV NUMBER 3 
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BOTANICAL GAZETTE 
SEPTEMBER 1917 
ROOT SYSTEMS OF CERTAIN DESERT PLANTS 
CONTRIBUTIONS FROM THE HULL BOTANICAL LABORATORY 236 
M. S. MARKLE 
(WITH THIRTY-THREE FIGURES) 
Introduction 
Although the aerial parts of plants have leng been studied, 
little was known of the nature of the subterranean parts until the 
work of CanNon' upon the plants of the region about Tucson, 
Arizona. The sup position had been that in general the roots of 
desert plants are of g enetratic The work ee 
of CANNON showed ‘that while this this is is so tim true, st 
: : a : : oe ee 
area att, ‘ 1 length oe al ike 
weh SPL SAS 
Since the soil conditions and the flora of the vicinity ‘of Albu- — 
querque are different from those at Tucson, a study of the rootsof = 
‘Plants was undertaken in that vicinity, during the first half of f the e 
“year FOr, Divers incre lies i in | the steses of the sees ey ule, on 
