XXXIX] CYCADORACHIS 591 



leaf and should not be referred to a genus implying affinity with 

 a particular class. The other species, C. armata, is probably a 

 piece of a spinous axis like that of the Wealden plant Sewardia 

 latifolia (Sap.). A fragment figured by Fliche and Bleicher 1 

 from the Jurassic of Nancy as C. tuberculata is another example 

 of a fossil which cannot be referred with any certainty to the 

 Cycads. 



Dr Stopes 2 , inadvertently overlooking the previous institution 

 of Cycadomchis, has recently proposed the name Cycadeorachis 

 for pinna tely branched rachises of Cycadeanf ronds which, ' while 

 indicating the general character of the frond, do not show the 

 shape of the pinnae well enough to be associated with any of the 

 many foliage-genera.' 



1 Fliche and Bleicher (82) p. 21, fig. 4. 2 Stopes (15) p. 53. 



