4 HiCKLING, Anatomy of CalamostacJiys Biniicyana. 



the sporangiophore. Something of the same arching 

 may be made out in a few longitudinal sections (O. 295, 

 O. 308)' while others show the trace curving simply 



Fic. I. 



Sections (longiuidinal) showing passage of sporangiophore-trace from axis 

 into sporangiophore. 



/;-. =sporangio[)hore-trace. 

 sp. = base of sporangiophore. 

 r. = cortex. 

 in. r= medulla. 



All sections x 50. 

 \a. Trace here enters in cinvmvard direction. The manner in which 

 it follows the conformation of the surrounding cortical cells 

 renders it unlikely that this course is due to displacement. 



"Cash" Coll., Manchr. Museum. (K 308. 

 \b. Trace curving upward into sporangiophore. 



Manchr. Museum Coll. R. 13SA. 

 \c. Trace .sharply bent at right-angles, but with slight initial recurving. 

 Compare arrangement of tracheids at bend with that in \l>. 



"Cash" Coll., Manchr. Museum. Q. 295. 



downward from the base of the sporangiophore. It seems 

 undesirable to lay any stress on this point, as slight 

 displacement would readily cause considerable modifica- 

 tion. 



There is no good evidence that the sporangiophore- 

 trace really arises from the stelar bundle at the point 



