Spathiphyllum
By Chriswalls
United Kingdom 
I have divided a Spathiphyllum and the new plant has curled up leaves... not root bound!
15 May, 2012
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I had the same trouble when I divided mine 2 years ago - one of them curled. I binned it after a couple of months, didn't seem to respond to any tlc. See how yours goes, but at least you've still got the other bit.
15 May, 2012