Colchicine is poisonous and a controlled substance...awhile back I was going to grow some fall crocus, which has colchicine throughout the plant. But I was advised not to mess with them so I just forgot it. It's cool that you have some tabs.
If you have not read this..it is from marijuana botany by r.c. clarke..
scroll down to Polyploidy
http://www.mellowgold.com/grow/mjbot...nabotany3.html