xxxix] 



PTILOPHYLLTJM 



513 



because of the 'oblique insertion of the pinnae and their over- 

 lapping each other at the base.' In a later paper Morris 1 states 

 that the pinnae of Ptilophyllum fronds are 'sometimes auriculed 

 in the upper and sometimes in the lower part' of the base of the 



FIG. 587. Ptilophyllum pecten. (British Museum, V. 3795; nat. size.) 



lamina. In his catalogue 2 he adopted Endlicher's genus Palaeo- 

 zamia instead of Ptilophyllum. Without discussing the generic 

 nomenclature adopted by various authors for the Indian types 

 and similar fronds it is important to refer briefly to the treatment 



1 Morris (41) p. 116. 2 Ibid. (54) p. 15. 



s. m 33 



