I have to say Martin you certainly bring some interesting material to the debate. This is a very interesting paper. It seems to agree with my position that 'typology', i.e. the existence of an ideal bauplan or ur-Pflanze, does not need to conflict with neo-darwinian theory.
The conflict, as the paper suggests, come from associated ideas such as essentialism or creationism, and these ideas may predispose their proponents to favour typology and see it as conflicting with modern evolutionary theory.
Troll's position seems to be based upon some massive assumptions, i.e. 'an organism has a certain independence in relation to the causal events and controls them more than it itself is controlled’. There seems to be pretty much no evidence for this being the case unless this control is thought of simply as the genetic 'program' of development.
TTFN,
WK