Comments on two Charts Relative to the Phylogeny of the Cormophyta, with some Remarks of a General Nature

Occupied as I still am by the Phylogeny of the Cormophyta I have, in various consecutive publications drafted my diagrams in different forms. Aware of the fact that particularly the older ones are no longer conformable in every respect with our present knowledge, I deemed it desirable to redraft the oldest one and add another, either of which is completing the other. Fig. 1 is a modernised version of the chart I published in 1948 which was generally based on data taken from Zimmermann. It has now been checked with data given by Arnold and others. The relative times have been brought into accordance with the estimated time scale of modern literature and some more attention has been given to the relative diversity (number of species) of recent groups. Supposed relationships have been shown by thin broken lines instead of dotted ones.