The Classification of Conifers. 257 
Cordaitales, and are considered (no doubt rightly) to be related to 
the Araucarians, therefore the Araucarians cannot be also related 
Angiosperms. 
Fig. 1. Suggested scheme of the Phylogeny of Gymnosperms. 
to the Cordaitales. The simple explanation would appear to be 
that the Araucarians are more primitive than the Podocarps, and 
that the latter have advanced further from the ancestral Cordai- 
talean type than the former, 
