Thanks for the reference, Dylan! (but geez-oh-pete I hate these journal publishers and their exorbitant fees....I won't be reading it very soon.) On Nov 11, 2012, at 3:49 PM, Hannon wrote: > Nhu et al., > > Here is a paper by Mueller-Doblies that addresses the issue of > "curly-whirly" morphology. He emphasizes water conservation but I > agree > with others who have suggested it has also to do with temperature > moderation. A flat linear leaf would likely have a greater heat load > than a > coiled or twisted surface. > > http://sciencedirect.com/science/article/… > > Dylan 2 6 2 . 4 9 0 . 6 1 6 3 New York NJ Philadelphia