> Maybe not *all* grass, but generally the blades are a tiny bit folded
> around a central - longitudinal - nerve. This helps also the blade to
> keep upright. Water droplets then often concentrate in the fold.

   The folding is universal, to my knowledge... just some kinds of grass
don't show it very well. In fact, it's something I noticed from day one,
but was too lazy to try it. I just looked now, and it was in fact very
easy to do, due to the way I'm constructing each blade. Thanks!


-- 
Jaime Vives Piqueres
		
La Persistencia de la Ignorancia
http://www.ignorancia.org

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