Intrafascicular Cambium in Monocotyledons . 45 
already known, cambial activity occurs in the bundles of the young inflores- 
cence axes of Eremurus himalaicus , Baker, and Nothoscordum fragrans , 
Kunth, while an ephemeral cambium occurs in the young shoots of 
Asparagus officinalis , L. The fact that cambial activity in Monocotyledons 
is, actually, more widespread than is generally assumed, offers a slight 
additional confirmation of the view, already expressed by Anderson, Queva, 
Chrysler, and Sargant, that the existence of this vestigial, intrafascicular 
cambium indicates that Monocotyledons have been derived from a dicotyle- 
donous stock. 
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