Hey folks,
Does anyone have access to the list of scion varieties available for this weekends scion exchange in Canby? I haven't been able to find one yet.

You could look at the list of the trees in the arboretum and there will probably be one of each of them. It is probably the largest apple scion exchange in N. America.
John S
PDX OR

Judging from past years that was probably true for the apples and pears, but not the stone fruit and the more unusuals.

Are there likely to be any Rubus amongst the cuttings?

In my recollection there usually is not. Usually if you ask for something in particular, people will give you plants. Just find someone who has what you want. If it's rare, you'll probably have to buy it.
John S
PDX OR