I know serverel of you maintains a real nice and diverse opuntia collection. I too have a few hundred species and locations under my care and are looking for trade partners in 2009. I am mainly looking for species with provenance but also old collection of Backebergs numerious forms are in my interest. My main interest is the south american species as I have most US and canadian species.
So if you are interested in exchanging pads in 2009 please contact me at email@example.com
A few of my plants can be seen here: