Evolution of the Angio sperms. 
5i3 
Table of Angiospermous and Gnetalean Relationships. 
! Recent 
Tertiary 
Mesozoic < 
Palaeozoic 
Ranalian plexus 
Eu-anthostrobilateae 
Pro-anthostrobilateae 
Monosporangiateae 
Amphisporangiateae 
We would here express our thanks to Miss Agnes Robertson, D.Sc., 
for kindly assisting us in certain matters in connexion with these studies, 
and for drawing one of the figures. 
1 By a printer’s error, the word 1 Diplosporangiateae ’ appeared here in the corresponding table 
on p. 77 of our earlier paper. 
