Hope this helps. P.S. Contact SilverHill Seed in South Africa as it
sells seed for N.bicalcarata and truncata, I believe, as well as others.
I have no time to find you its address as I am just departing for the
airport to leave for Malaysia. It is on the CP Archive Page which lists
all the plant suppliers (MasterSellers List).
Best wishes, Alastair Robinson. G'bye everyone.