Seedling Structure of Gy mno sperms. II. 215 
thus organized which balanced the original single structure, and the two 
together formed the other pole of the diarch root. 
The facts of the transition corroborate the view, based on the external 
morphology, that there are really only two cotyledons in this species ; and 
as the resemblance between the seedling of this species and those of 
Diagram io. Araucaria Cunninghamii. 
A. excelsa and A. Cookii , as indicated by the published illustrations , 1 is 
extremely close, the description of the species of the section Eutacta 
appears to require some emendation. Rather they should be described as 
having typically two cotyledons, each of which is forked. At the same time 
1 See Seward and Ford, loc. cit. 
