I have been sowing various winter-growing Drosera recently (D. cistiflora, peltata, macrantha ssp planchonii & whittakeri - wish me luck! *[img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img] ), and was struck by how different the various seed structure/morphology is in this genus: from the tiny D.cistiflora, through the small rounded peltata, to the what I can only describe as "wierd" D.macrantha ssp planchonii, to the (relatively) huge D.whittakeri seed! Also, from experience other members of the genus are different again (e.g. the fusiform [=thin at either end, swollen in the middle, like a giant orchid seed] shape of D.rotundifolia).
Has anyone ever done a study to see how they are adapted for dispersal in the wild? e.g. D.rotundifolia may be partly wind disperal (but not v.far range I think), D.whittakeri dispersed by insects perhaps (e.g. ants), etc. Most probably just fall near the parent plant in (hopefully) suitable soil. It just struck me as an interesting question! [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]
Also, similar question re: flower pollination. For example, many pygmy Drosera seem to have almost a "metallic flaked" appearance, which is extraordinarily beautiful to us humans (IMHO) - is this also an adaptation to specific insect pollinators?
Most studies on CPs seem to generally concentrate on the aspect of carnivory, but I think these other aspects are also very interesting, especially if we wish to understand their biology in full.
(Of course, the same questions can be applied to other [lesser] CPs as well - ducks & runs!! )
Just a couple ideas I thought I'd kick around! *[img]http://www.**********.com/iB_html/non-cgi/emoticons/smile.gif[/img]