Biogeography of Dietes (Iridaceae)

[Peter Stevens]

At 1:15 PM -0500 1/21/03, john Grehan wrote:
>One might argue from a
>stratigraphic point of view that Lord Howe Island is not old enough, or
>been above water long enough. These are geological theories that may or may
>not be true, and are contingent upon theories about the geological
>formations of the immediate area. Thus one cannot presuppose that these
theories are anything more than just that and the biogeographic picture
>does not have to be made subordinate to those theories


Question (and I apologise for reopening a can of fat and very wriggly
worms): could geological evidence/theories/hypotheses ever be
relevant to your thinking?  If so, perhaps you could suggest what
kind of information might be suitable.

P.